aklofas/kicad-happy

"author": {     "name": "aklofas",     "url": "https://github.com/aklofas"

"name": "aklofas",     "url": "https://github.com/aklofas"   },

"url": "https://github.com/aklofas"

},   "repository": "https://github.com/aklofas/kicad-happy",   "license": "MIT",

"repository": "https://github.com/aklofas/kicad-happy",

rm -rf datasheets/

rm -rf bom/orders/

rm -f *.bak

| `Value` | Component value | `100nF`, `ESP32-S3-WROOM-1` | | `Footprint` | Library:footprint | `Capacitor_SMD:C_0402_1005Metric` | | `Datasheet` | URL to datasheet | `https://...` |

| `Footprint` | Library:footprint | `Capacitor_SMD:C_0402_1005Metric` | | `Datasheet` | URL to datasheet | `https://...` | | `Description` | Part description | `100nF 16V X7R 0402 MLCC` |

| `Datasheet` | URL to datasheet | `https://...` |

Paste into the bulk-add box at [digikey.com/ordering/shoppingcart](https://www.digikey.com/ordering/shoppingcart):

https://www.digikey.com/classic/ordering/fastadd.aspx?part1=490-10698-1-ND&qty1=3&cref1=C1/C2/C5&part2=...

`newcart=true` **starts a new empty cart**, and the shopping-cart page warns that creating a new cart deletes the items currently in it. Omit it to append. ([DigiKey FastAdd guide](https://forum.digikey.com/t/digikey-fastadd-bulk-add-parts-

([DigiKey FastAdd guide](https://forum.digikey.com/t/digikey-fastadd-bulk-add-parts-into-a-digikey-cart-via-third-party-tooling-and-urls/61356))

**BOM Manager** — [digikey.com/en/resources/bom-manager](https://www.digikey.com/en/resources/bom-manager). Upload CSV/XLS/XLSX, map columns interactively. Accepts both DigiKey PNs and MPNs.

Paste at [mouser.com/tools/part-list-import.aspx](https://www.mouser.com/tools/part-list-import.aspx) (requires login):

**FORTE BOM Tool** — [mouser.com/bomtool](https://www.mouser.com/bomtool/). Upload CSV/XLS/XLSX, auto-matching MPNs.

Upload at [lcsc.com/bom](https://www.lcsc.com/bom) (max 800 lines):

Paste at [newark.com/quick-order](https://www.newark.com/quick-order):

**BOM Upload** — [newark.com/bom-upload-landing](https://www.newark.com/bom-upload-landing). Accepts both Newark PNs and MPNs.

**BOM Tool** — [arrow.com/en/bom-management-tool](https://www.arrow.com/en/bom-management-tool). Upload CSV/XLS/XLSX (max 3,000 lines). Accepts MPNs, Arrow PNs. Can purchase or request quotes directly.

(property "Supplier 1" "Digikey" ...) (property "Supplier 1 Part #" "490-10698-1-ND" ...) (property "Supplier 1 Link" "https://www.digikey.com/..." ...)

(property "Supplier 1 Part #" "490-10698-1-ND" ...) (property "Supplier 1 Link" "https://www.digikey.com/..." ...) (property "Supplier 2" "Mouser" ...)

(property "Supplier 1 Link" "https://www.digikey.com/..." ...)

(property "Manufacturer_Name" "Texas Instruments" ...) (property "Mouser Part Number" "595-TPS63020DSJR" ...) (property "Mouser Price/Stock" "https://www.mouser.com/..." ...)

(property "Mouser Part Number" "595-TPS63020DSJR" ...) (property "Mouser Price/Stock" "https://www.mouser.com/..." ...) (property "STANDARD" "IPC 7351B" ...)

(property "Mouser Price/Stock" "https://www.mouser.com/..." ...)

| 2-3 digits + `-` + alphanum | Mouser | `81-GRM155R71C104KA8D`, `595-TPS63020DSJR` | | Alphanumeric 8+ chars, no hyphens | Often MPN | `GRM155R71C104KA88D`, `TPS61023DRLR` | | URL | Not a PN — datasheet or product link | `https://www.digik

| Alphanumeric 8+ chars, no hyphens | Often MPN | `GRM155R71C104KA88D`, `TPS61023DRLR` | | URL | Not a PN — datasheet or product link | `https://www.digikey.com/...` | | Simple value (digits + unit) | Not a PN — component value | `100nF`, `

| URL | Not a PN — datasheet or product link | `https://www.digikey.com/...` |

#!/usr/bin/env python3

#!/usr/bin/env python3

"C1": {             "MPN": "GRM155R71C104KA88D",             "Datasheet": "https://example.com/datasheet.pdf"

"MPN": "GRM155R71C104KA88D",             "Datasheet": "https://example.com/datasheet.pdf"         }

"Datasheet": "https://example.com/datasheet.pdf"

Executable file

#!/usr/bin/env python3

#!/usr/bin/env python3

#!/usr/bin/env python3

Executable file

Executable file

Executable file

Executable file

Executable file

Executable file

Executable file

Executable file

"page_count": 10,     "sha256": "sha256:a617ed2f9bfebfa5e57d9e8e6ba8f165b6f8d88ce57f11b47aae99a8f8905d85",     "source_url": "http://www.irf.com"

"sha256": "sha256:a617ed2f9bfebfa5e57d9e8e6ba8f165b6f8d88ce57f11b47aae99a8f8905d85",     "source_url": "http://www.irf.com"   },

"source_url": "http://www.irf.com"

"max": null,         "min": null,         "notes": "Total Gate Charge Qg; datasheet value 6.8 nC converted to C",

"min": null,         "notes": "Total Gate Charge Qg; datasheet value 6.8 nC converted to C",         "typ": 6.8e-09,

"notes": "Total Gate Charge Qg; datasheet value 6.8 nC converted to C",

"max": null,         "min": null,         "notes": "Gate-to-Drain (Miller) Charge Qgd; datasheet value 2.4 nC converted to C",

"min": null,         "notes": "Gate-to-Drain (Miller) Charge Qgd; datasheet value 2.4 nC converted to C",         "typ": 2.4e-09,

"notes": "Gate-to-Drain (Miller) Charge Qgd; datasheet value 2.4 nC converted to C",

"page_count": 5,     "sha256": "sha256:1064a599f53ed9cbb6fd5f349b98aa0bcb6eaa1cd434acec5911321a83a08f31",     "source_url": "https://www.onsemi.com"

"sha256": "sha256:1064a599f53ed9cbb6fd5f349b98aa0bcb6eaa1cd434acec5911321a83a08f31",     "source_url": "https://www.onsemi.com"   }

"source_url": "https://www.onsemi.com"

"page_count": 116,     "sha256": "sha256:0596dd57693c93d214c9cb69186429883c853bad8650926def57c1ed3cdf2e9f",     "source_url": "https://www.st.com/resource/en/datasheet/stm32f103c8.pdf"

"sha256": "sha256:0596dd57693c93d214c9cb69186429883c853bad8650926def57c1ed3cdf2e9f",     "source_url": "https://www.st.com/resource/en/datasheet/stm32f103c8.pdf"   }

"source_url": "https://www.st.com/resource/en/datasheet/stm32f103c8.pdf"

1. **Canonical SI units.** Resistance in Ω. Capacitance in F (NOT pF — store 650pF as `6.5e-10` with `unit: "F"`). Charge in C (NOT nC — store 6.8nC as `6.8e-9` with `unit: "C"`). Voltage in V. Current in A. Frequency in Hz (NOT MHz — store

| `analog` | Analog signal (feedback, sense, reference) | | `digital` | Digital signal (logic I/O, enable, clock) | | `no_connect` | NC pin — must not be connected |

| `digital` | Digital signal (logic I/O, enable, clock) | | `no_connect` | NC pin — must not be connected | | `bidirectional` | Can be input or output depending on configuration |

| `no_connect` | NC pin — must not be connected |

- `"Bypass cap 100nF to GND, place within 3mm"` - `"Resistor divider from VOUT, Vout = 0.595 * (1 + R1/R2)"` - `"Do not connect"` (NC pins)

- `"Resistor divider from VOUT, Vout = 0.595 * (1 + R1/R2)"` - `"Do not connect"` (NC pins) - `"Connect to VIN for always-on, or logic control. Do not float."`

- `"Do not connect"` (NC pins)

{   "$schema": "https://json-schema.org/draft/2020-12/schema",

"$schema": "https://json-schema.org/draft/2020-12/schema",

"$id": "https://kicad-happy.local/datasheets/schemas/base.schema.json",

"additionalProperties": {         "type": "array",         "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"}

"type": "array",         "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"}       }

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"}

"additionalProperties": {         "type": "array",         "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"}

"type": "array",         "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"}       }

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"}

"additionalProperties": {         "type": "array",         "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"}

"type": "array",         "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"}       }

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"}

"additionalProperties": {         "type": "array",         "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"}

"type": "array",         "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"}       }

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"}

},     "pinout": {       "$ref": "https://kicad-happy.local/datasheets/schemas/pinout.schema.json",

"pinout": {       "$ref": "https://kicad-happy.local/datasheets/schemas/pinout.schema.json",       "description": "Full pinout array. Defers to pinout.schema.json so pin shape evolves independently."

"$ref": "https://kicad-happy.local/datasheets/schemas/pinout.schema.json",

{   "$schema": "https://json-schema.org/draft/2020-12/schema",

"$schema": "https://json-schema.org/draft/2020-12/schema",

"$id": "https://kicad-happy.local/datasheets/schemas/crystal.schema.json",

"frequency": {       "type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},       "description": "Nominal resonant frequency in Hz. Store MHz as Hz (e.g. 12 MHz → 12000000). Store kHz as Hz (e.

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"frequency_tolerance": {       "type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},       "description": "Initial frequency tolerance at +25°C in ppm (unit: 'ppm'). Symmetric tolerance stored as min/ma

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"frequency_stability": {       "type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},       "description": "Frequency stability over the operating temperature range in ppm (unit: 'ppm'), referenced to +2

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"aging": {       "type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},       "description": "Long-term frequency aging drift in ppm (unit: 'ppm'). Condition should note the time window (e.

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"load_capacitance": {       "type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},       "description": "Specified load capacitance in Farads (unit: 'F'). Store pF as F (e.g. 12 pF → 1.2e-11, 18 pF → 

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"motional_capacitance": {       "type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},       "description": "Motional (series) capacitance C1 of the Butterworth–Van Dyke equivalent circuit in Farads (unit

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"motional_inductance": {       "type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},       "description": "Motional inductance L1 of the Butterworth–Van Dyke equivalent circuit in Henries (unit: 'H'). T

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"esr_max": {       "type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},       "description": "Maximum equivalent series resistance (ESR or R1) in Ohms (unit: 'Ω'). This is a maximum spec — 

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"drive_level_max": {       "type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},       "description": "Maximum allowable crystal excitation power in Watts (unit: 'W'). Store µW as W (e.g. 100 µW → 1

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"operating_temp_range": {       "type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},       "description": "Operating temperature range in degrees Celsius (unit: '°C'). Stored as min/max. Common grades: 

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

},         "evidence": {           "$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json#/properties/evidence"

"evidence": {           "$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json#/properties/evidence"         }

"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json#/properties/evidence"

{   "$schema": "https://json-schema.org/draft/2020-12/schema",

"$schema": "https://json-schema.org/draft/2020-12/schema",

"$id": "https://kicad-happy.local/datasheets/schemas/diode.schema.json",

"vf": {       "type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},       "description": "Forward voltage drop (V). Multiple SpecValues per part when datasheet publishes at multiple If 

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"if_max": {       "type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},       "description": "Maximum forward current (A). Multiple SpecValues to disambiguate continuous (IF), average recti

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"ifsm": {       "type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},       "description": "Non-repetitive peak surge current (A). Single SpecValue per part typically. Condition carries p

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"vr_max": {       "type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},       "description": "Maximum reverse voltage (V). Multiple SpecValues to disambiguate VRRM (peak repetitive), VR (DC

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"breakdown_voltage": {       "type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},       "description": "Reverse breakdown voltage V_BR (V). Distinct from vr_max — represents the measured avalanche th

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"ir": {       "type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},       "description": "Reverse leakage current (A). Multiple SpecValues for different reverse voltage and junction tem

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"trr": {       "type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},       "description": "Reverse recovery time (s). Most relevant for switching, signal, and Schottky diodes. Typically 

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"cd": {       "type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},       "description": "Junction capacitance (F). Condition carries reverse voltage and test frequency (e.g. 'VR=0V, f=

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"vz": {       "type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},       "description": "Zener voltage (V). Null for all non-zener diode types. Condition carries test current Iz."

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"power_dissipation": {       "type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},       "description": "Continuous power dissipation (W). Condition typically carries ambient temperature Ta or lead te

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"tj_max": {       "type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},       "description": "Maximum operating junction temperature (°C). Both min (storage lower bound) and max populated w

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"rtheta_ja": {           "type": ["array", "null"],           "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],           "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},           "description": "Junction-to-ambient thermal resistance (K/W). Condition may specify board conditions (e

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"rtheta_jc": {           "type": ["array", "null"],           "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],           "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},           "description": "Junction-to-case thermal resistance (K/W). Null when not specified."

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"rtheta_jl": {           "type": ["array", "null"],           "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],           "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},           "description": "Junction-to-lead thermal resistance (K/W). Common for SMD packages (e.g. SMC, SMA). Nul

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

},         "evidence": {           "$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json#/properties/evidence"

"evidence": {           "$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json#/properties/evidence"         }

"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json#/properties/evidence"

{   "$schema": "https://json-schema.org/draft/2020-12/schema",

"$schema": "https://json-schema.org/draft/2020-12/schema",

"$id": "https://kicad-happy.local/datasheets/schemas/extraction.schema.json",

}     },     "base": {"$ref": "https://kicad-happy.local/datasheets/schemas/base.schema.json"},

},     "base": {"$ref": "https://kicad-happy.local/datasheets/schemas/base.schema.json"},     "categories": {

"base": {"$ref": "https://kicad-happy.local/datasheets/schemas/base.schema.json"},

"description": "List of active category extensions for this MPN (e.g. ['regulator'] or ['regulator', 'supervisor'] for a PMIC). Each entry must match a sibling key carrying that category's extension payload."     },     "regulator": {"$ref"

},     "regulator": {"$ref": "https://kicad-happy.local/datasheets/schemas/regulator.schema.json"}   }

"regulator": {"$ref": "https://kicad-happy.local/datasheets/schemas/regulator.schema.json"}

"path": "LM2596-ADJ.pdf",       "mpns": ["LM2596-ADJ", "LM2596S-ADJ"],       "source_url": "https://www.ti.com/lit/ds/symlink/lm2596.pdf",

"mpns": ["LM2596-ADJ", "LM2596S-ADJ"],       "source_url": "https://www.ti.com/lit/ds/symlink/lm2596.pdf",       "is_family": false

"source_url": "https://www.ti.com/lit/ds/symlink/lm2596.pdf",

{   "$schema": "https://json-schema.org/draft/2020-12/schema",

"$schema": "https://json-schema.org/draft/2020-12/schema",

"$id": "https://kicad-happy.local/datasheets/schemas/manifest.schema.json",

{   "$schema": "https://json-schema.org/draft/2020-12/schema",

"$schema": "https://json-schema.org/draft/2020-12/schema",

"$id": "https://kicad-happy.local/datasheets/schemas/mcu.schema.json",

"vdd_range": {       "type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},       "description": "Main power supply voltage range (unit: V). For most MCUs this is VDD or VCC. Condition carries 

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"vddio_range": {       "type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},       "description": "Separate I/O supply voltage range (unit: V), when the I/O power domain is independent of VDD. N

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"vdda_range": {       "type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},       "description": "Analog supply voltage range (unit: V) for ADC/DAC/PLL supplies (AVCC, VDDA, AVDD). Null when an

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"rtheta_ja": {           "type": ["array", "null"],           "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],           "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},           "description": "Junction-to-ambient thermal resistance (K/W or °C/W). Condition may specify board and c

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"rtheta_jc": {           "type": ["array", "null"],           "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],           "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},           "description": "Junction-to-case thermal resistance (K/W or °C/W). Null when not specified."

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"rtheta_jl": {           "type": ["array", "null"],           "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],           "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},           "description": "Junction-to-lead thermal resistance (K/W or °C/W). Common for some SMD packages. Null f

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

},         "evidence": {           "$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json#/properties/evidence"

"evidence": {           "$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json#/properties/evidence"         }

"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json#/properties/evidence"

{   "$schema": "https://json-schema.org/draft/2020-12/schema",

"$schema": "https://json-schema.org/draft/2020-12/schema",

"$id": "https://kicad-happy.local/datasheets/schemas/opamp.schema.json",

"vsupply_range": {       "type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},       "description": "Total supply voltage range V+ to V− (unit: V). For single-supply parts store as min/max of VDD−

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"iq_per_amp": {       "type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},       "description": "Quiescent current PER op-amp channel (unit: A). NOT total package current. Divide datasheet's t

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"gbw": {       "type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},       "description": "Gain-bandwidth product (unit: Hz — NOT MHz; store 1MHz as 1e6). The frequency at which open-loo

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"slew_rate": {       "type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},       "description": "Slew rate (unit: V/s — NOT V/µs; store 0.6V/µs as 6e5). Rate of output voltage change under lar

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"vos": {       "type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},       "description": "Input offset voltage (unit: V). Condition carries Vcm and supply. Multiple SpecValues for diffe

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"ib": {       "type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},       "description": "Input bias current (unit: A). BJT inputs are typically nA (e.g. 45nA → 4.5e-8); CMOS/JFET input

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"cmrr": {       "type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},       "description": "Common mode rejection ratio (unit: dB). Condition carries common mode input range and supply. H

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"psrr": {       "type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},       "description": "Power supply rejection ratio (unit: dB). Condition carries supply range. Higher is better."

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"vout_swing_high": {       "type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},       "description": "Output high swing headroom (unit: V — stored as positive headroom FROM V+). Rail-to-rail parts 

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"vout_swing_low": {       "type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},       "description": "Output low swing headroom (unit: V — stored as positive headroom FROM V−). Rail-to-rail parts s

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"output_drive_current": {       "type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},       "description": "Output source or sink current capability (unit: A). May be specified as short-circuit current (

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"rtheta_ja": {           "type": ["array", "null"],           "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],           "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},           "description": "Junction-to-ambient thermal resistance (K/W or °C/W). Condition may specify board and c

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"rtheta_jc": {           "type": ["array", "null"],           "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],           "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},           "description": "Junction-to-case thermal resistance (K/W or °C/W). Null when not specified."

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"rtheta_jl": {           "type": ["array", "null"],           "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],           "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},           "description": "Junction-to-lead thermal resistance (K/W or °C/W). Common for some SMD packages. Null f

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

},         "evidence": {           "$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json#/properties/evidence"

"evidence": {           "$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json#/properties/evidence"         }

"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json#/properties/evidence"

{   "$schema": "https://json-schema.org/draft/2020-12/schema",

"$schema": "https://json-schema.org/draft/2020-12/schema",

"$id": "https://kicad-happy.local/datasheets/schemas/pinout.schema.json",

"absolute_max": {           "type": ["array", "null"],           "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],           "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},           "description": "Per-pin absolute-maximum ratings (voltage, current). null when the datasheet only publi

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"recommended": {           "type": ["array", "null"],           "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],           "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},           "description": "Per-pin recommended operating ratings."

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"drive_strength": {           "type": ["array", "null"],           "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],           "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},           "description": "Per-pin output drive strength (IOH, IOL)."

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

{   "$schema": "https://json-schema.org/draft/2020-12/schema",

"$schema": "https://json-schema.org/draft/2020-12/schema",

"$id": "https://kicad-happy.local/datasheets/schemas/plan.schema.json",

{   "$schema": "https://json-schema.org/draft/2020-12/schema",

"$schema": "https://json-schema.org/draft/2020-12/schema",

"$id": "https://kicad-happy.local/datasheets/schemas/regulator.schema.json",

"vin_range": {       "type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},       "description": "Input voltage operating range. Typically a single SpecValue with min/max populated."

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"vout_range": {       "type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},       "description": "Output voltage range (fixed parts: single value; adjustable: min→max)."

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"iout_max": {       "type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},       "description": "Maximum output current. May carry multiple SpecValues for different conditions (ambient temp, p

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"reference_voltage": {       "type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},       "description": "Feedback reference voltage (adjustable parts only). Consumed by FS-001 and FB divider math."

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"cin_min": {       "type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},       "description": "Minimum input-capacitor value required for stable operation (datasheet app-info). Consumed by E

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"cout_min": {       "type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},       "description": "Minimum output-capacitor value required for stability."

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"inductor_range": {       "type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},       "description": "Recommended inductor value range (switching topologies only; null for LDO/charge-pump)."

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"switching_freq": {       "type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},       "description": "Nominal switching frequency (switching topologies only)."

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"dropout": {       "type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},       "description": "Dropout voltage (LDO only). null for switching topologies."

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"psrr": {       "type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},       "description": "Power-supply rejection ratio across frequency. May carry multiple SpecValues for different freq

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"line_regulation": {       "type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},       "description": "Line regulation across input-voltage range."

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"load_regulation": {       "type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},       "description": "Load regulation across output-current range."

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],           "description": "Permitted output-capacitor ESR window for stable operation. null when datasheet doesn't publish an ESR constraint (modern ceramic-friendly LDOs).",           "items": {"$ref": "https://ki

"description": "Permitted output-capacitor ESR window for stable operation. null when datasheet doesn't publish an ESR constraint (modern ceramic-friendly LDOs).",           "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/sp

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"}

"type": ["array", "null"],           "description": "Maximum allowed time gap between the rail this rail depends on and this rail coming into regulation. Consumed by ST-001 when the datasheet publishes an explicit max-delay constraint.",   

"description": "Maximum allowed time gap between the rail this rail depends on and this rail coming into regulation. Consumed by ST-001 when the datasheet publishes an explicit max-delay constraint.",           "items": {"$ref": "https://ki

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"}

{   "$schema": "https://json-schema.org/draft/2020-12/schema",

"$schema": "https://json-schema.org/draft/2020-12/schema",

"$id": "https://kicad-happy.local/datasheets/schemas/scout.schema.json",

{   "$schema": "https://json-schema.org/draft/2020-12/schema",

"$schema": "https://json-schema.org/draft/2020-12/schema",

"$id": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json",

{   "$schema": "https://json-schema.org/draft/2020-12/schema",

"$schema": "https://json-schema.org/draft/2020-12/schema",

"$id": "https://kicad-happy.local/datasheets/schemas/transistor.schema.json",

"vceo_max": {       "type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},       "description": "Collector-Emitter breakdown voltage with base open (V). BJT only — null for FET/JFET/IGBT. Cond

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"vcbo_max": {       "type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},       "description": "Collector-Base breakdown voltage with emitter open (V). BJT only — null for FET/JFET/IGBT. Cond

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"vebo_max": {       "type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},       "description": "Emitter-Base breakdown voltage with collector open (V). BJT only — null for FET/JFET/IGBT. Cond

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"ic_max": {       "type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},       "description": "Continuous collector current (A). BJT only — null for FET/JFET/IGBT. Condition distinguishes co

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"hfe": {       "type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},       "description": "DC current gain hFE (dimensionless — unit: null). BJT only — null for FET/JFET/IGBT. Multiple S

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"vce_sat": {       "type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},       "description": "Collector-Emitter saturation voltage (V). BJT only — null for FET/JFET/IGBT. Multiple SpecValue

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"vbe_sat": {       "type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},       "description": "Base-Emitter saturation voltage (V). BJT only — null for FET/JFET/IGBT. Multiple SpecValues for

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"ft": {       "type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},       "description": "Transition frequency / current gain-bandwidth product (Hz — NOT MHz; store 250MHz as 250e6). BJ

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"vds_max": {       "type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},       "description": "Drain-Source breakdown voltage (V). FET/JFET/IGBT only — null for BJT. Found in Absolute Maximu

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"vgs_max": {       "type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},       "description": "Gate-Source maximum voltage (V). FET/JFET only — null for BJT. Bipolar spec (min negative, max 

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"id_max": {       "type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},       "description": "Continuous drain current (A). FET/IGBT only — null for BJT. Multiple SpecValues for different a

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"rds_on": {       "type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},       "description": "Drain-Source on-resistance (Ω). MOSFET/JFET only — null for BJT/IGBT. Multiple SpecValues for d

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"vgs_th": {       "type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},       "description": "Gate threshold voltage (V). FET/IGBT only — null for BJT. Condition carries VDS=VGS and ID test

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"qg": {       "type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},       "description": "Total gate charge (C — NOT nC; store 6.8nC as 6.8e-9). FET/IGBT only — null for BJT. Condition 

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},       "description": "Total gate charge (C — NOT nC; store 6.8nC as 6.8e-9). FET/IGBT only — null for BJT. Condition carries ID, VDS, and VGS test poi

"qgd": {       "type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},       "description": "Gate-Drain Miller charge (C — NOT nC; store 2.4nC as 2.4e-9). FET/IGBT only — null for BJT. Con

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},       "description": "Gate-Drain Miller charge (C — NOT nC; store 2.4nC as 2.4e-9). FET/IGBT only — null for BJT. Condition carries ID, VDS, and VGS t

"ciss": {       "type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},       "description": "MOSFET input capacitance (F — NOT pF; store 650pF as 6.5e-10). MOSFET only — null for BJT/JFET/

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"coss": {       "type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},       "description": "MOSFET output capacitance (F — NOT pF). MOSFET only — null for BJT/JFET/IGBT. Condition carries

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"crss": {       "type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},       "description": "MOSFET reverse transfer (Miller) capacitance (F — NOT pF). MOSFET only — null for BJT/JFET/IGBT

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"body_diode_vf": {       "type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},       "description": "Body diode forward voltage (V). MOSFET only — null for BJT/JFET/IGBT. Condition carries IS and 

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"power_dissipation": {       "type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},       "description": "Continuous power dissipation (W). Applies to all transistor types. Multiple SpecValues for diff

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"tj_max": {       "type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],       "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},       "description": "Operating junction temperature range (°C). Applies to all transistor types. Populate min with l

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"rtheta_ja": {           "type": ["array", "null"],           "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],           "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},           "description": "Junction-to-ambient thermal resistance (K/W or °C/W). Condition may specify board condi

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"rtheta_jc": {           "type": ["array", "null"],           "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],           "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},           "description": "Junction-to-case thermal resistance (K/W or °C/W). Null when not specified."

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"rtheta_jl": {           "type": ["array", "null"],           "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

"type": ["array", "null"],           "items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},           "description": "Junction-to-lead thermal resistance (K/W or °C/W). Common for some SMD packages. Null f

"items": {"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json"},

},         "evidence": {           "$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json#/properties/evidence"

"evidence": {           "$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json#/properties/evidence"         }

"$ref": "https://kicad-happy.local/datasheets/schemas/spec_value.schema.json#/properties/evidence"

#!/usr/bin/env python3

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#!/usr/bin/env python3

#!/usr/bin/env python3

#!/usr/bin/env python3

#!/usr/bin/env python3

1. **Create a DigiKey account** at [digikey.com](https://www.digikey.com) if you don't have one

2. **Register an API app** at [developer.digikey.com](https://developer.digikey.com):

- Select **"Product Information v4"** API    - OAuth type: **Client Credentials** (2-legged, no user login needed)    - Callback URL: `https://localhost` (not used for client credentials, but required)

- OAuth type: **Client Credentials** (2-legged, no user login needed)    - Callback URL: `https://localhost` (not used for client credentials, but required)    - After creation, note the **Client ID** and **Client Secret**

- Callback URL: `https://localhost` (not used for client credentials, but required)

[Credential-related source omitted]

**Base URL:** `https://api.digikey.com`

[Credential-related source omitted]

[Credential-related source omitted]

[Credential-related source omitted]

[Credential-related source omitted]

[Credential-related source omitted]

"UnitPrice": 0.01,   "QuantityAvailable": 248000,   "ProductUrl": "https://www.digikey.com/...",

"QuantityAvailable": 248000,   "ProductUrl": "https://www.digikey.com/...",   "DatasheetUrl": "https://...",

"ProductUrl": "https://www.digikey.com/...",

"DatasheetUrl": "https://...",

"PhotoUrl": "https://...",

https://www.digikey.com/en/products/result?keywords=<url-encoded-query>

Examples: - `https://www.digikey.com/en/products/result?keywords=GRM155R71C104KA88D` (by MPN)

- `https://www.digikey.com/en/products/result?keywords=GRM155R71C104KA88D` (by MPN)

- `https://www.digikey.com/en/products/result?keywords=100nF+0402+X7R+16V` (by specs)

"manufacturer": "Texas Instruments",       "description": "Boost converter",       "datasheet_url": "https://...",

"description": "Boost converter",       "datasheet_url": "https://...",       "status": "ok",

"datasheet_url": "https://...",

# Direct URL download python3 <skill-path>/scripts/fetch_datasheet_digikey.py "https://www.ti.com/lit/gpn/tps61023" -o datasheet.pdf

python3 <skill-path>/scripts/fetch_datasheet_digikey.py "https://www.ti.com/lit/gpn/tps61023" -o datasheet.pdf

The script: - **OS-agnostic** — uses Python `requests` library (no wget/curl dependency). Falls back to `urllib` if `requests` isn't installed.

- **OS-agnostic** — uses Python `requests` library (no wget/curl dependency). Falls back to `urllib` if `requests` isn't installed.

Example message to the user: > I couldn't download the datasheet for ICE40UP5K-SG48I automatically — Lattice's site requires browser authentication. Here's the direct link: > https://www.latticesemi.com/-/media/LatticeSemi/Documents/DataShe

> I couldn't download the datasheet for ICE40UP5K-SG48I automatically — Lattice's site requires browser authentication. Here's the direct link: > https://www.latticesemi.com/-/media/LatticeSemi/Documents/DataSheets/iCE/FPGA-DS-02008-1-9-iCE

> https://www.latticesemi.com/-/media/LatticeSemi/Documents/DataSheets/iCE/FPGA-DS-02008-1-9-iCE40-Ultra-Plus-Family-Data-Sheet.ashx

#!/usr/bin/env python3

[Credential-related source omitted]

[Credential-related source omitted]

[Credential-related source omitted]

[Credential-related source omitted]

[Credential-related source omitted]

[Credential-related source omitted]

"grant_type": "client_credentials",         }).encode()         req = urllib.request.Request(

}).encode()         req = urllib.request.Request(             "https://api.digikey.com/v1/oauth2/token",

req = urllib.request.Request(

"https://api.digikey.com/v1/oauth2/token",

headers={"Content-Type": "application/x-www-form-urlencoded"},         )         with urllib.request.urlopen(req, timeout=15) as resp:

)         with urllib.request.urlopen(req, timeout=15) as resp:             token_resp = json.loads(resp.read())

with urllib.request.urlopen(req, timeout=15) as resp:

[Credential-related source omitted]

[Credential-related source omitted]

try:         search_body = json.dumps({"Keywords": mpn, "Limit": 3}).encode()         req = urllib.request.Request(

search_body = json.dumps({"Keywords": mpn, "Limit": 3}).encode()         req = urllib.request.Request(             "https://api.digikey.com/products/v4/search/keyword",

req = urllib.request.Request(

"https://api.digikey.com/products/v4/search/keyword",

},         )         with urllib.request.urlopen(req, timeout=15) as resp:

)         with urllib.request.urlopen(req, timeout=15) as resp:             data = json.loads(resp.read())

with urllib.request.urlopen(req, timeout=15) as resp:

req = urllib.request.Request(url, headers={"User-Agent": _USER_AGENT})

with urllib.request.urlopen(req, timeout=20) as resp:

if any(x in mpn_upper for x in ("ATMEGA", "ATTINY", "PIC", "SAMD", "SAM")):         alternatives.append(             f"https://ww1.microchip.com/downloads/aemDocuments/documents/MCU08/ProductDocuments/DataSheets/{mpn}-DataSheet.pdf"

alternatives.append(             f"https://ww1.microchip.com/downloads/aemDocuments/documents/MCU08/ProductDocuments/DataSheets/{mpn}-DataSheet.pdf"         )

f"https://ww1.microchip.com/downloads/aemDocuments/documents/MCU08/ProductDocuments/DataSheets/{mpn}-DataSheet.pdf"

#!/usr/bin/env python3

[Credential-related source omitted]

[Credential-related source omitted]

[Credential-related source omitted]

[Credential-related source omitted]

[Credential-related source omitted]

[Credential-related source omitted]

"grant_type": "client_credentials",         }).encode()         req = urllib.request.Request(

}).encode()         req = urllib.request.Request(             "https://api.digikey.com/v1/oauth2/token",

req = urllib.request.Request(

"https://api.digikey.com/v1/oauth2/token",

headers={"Content-Type": "application/x-www-form-urlencoded"},         )         with urllib.request.urlopen(req, timeout=15) as resp:

)         with urllib.request.urlopen(req, timeout=15) as resp:             token_resp = json.loads(resp.read())

with urllib.request.urlopen(req, timeout=15) as resp:

[Credential-related source omitted]

try:         search_body = json.dumps({"Keywords": mpn, "Limit": 3}).encode()         req = urllib.request.Request(

search_body = json.dumps({"Keywords": mpn, "Limit": 3}).encode()         req = urllib.request.Request(             "https://api.digikey.com/products/v4/search/keyword",

req = urllib.request.Request(

"https://api.digikey.com/products/v4/search/keyword",

},         )         with urllib.request.urlopen(req, timeout=15) as resp:

)         with urllib.request.urlopen(req, timeout=15) as resp:             data = json.loads(resp.read())

with urllib.request.urlopen(req, timeout=15) as resp:

1. **Register** at [partner.element14.com/member/register](https://partner.element14.com/member/register)

- Free account — just username, email, password. No credit card needed.    - Provides a "courtesy usage allowance" (2 calls/sec, 1,000 calls/day — sufficient for normal use) 2. **Register an application** — after logging in, go to [My API K

- Provides a "courtesy usage allowance" (2 calls/sec, 1,000 calls/day — sufficient for normal use) 2. **Register an application** — after logging in, go to [My API Keys](https://partner.element14.com/apps/mykeys) and click "Get API Keys"   

2. **Register an application** — after logging in, go to [My API Keys](https://partner.element14.com/apps/mykeys) and click "Get API Keys"

[Credential-related source omitted]

[Credential-related source omitted]

**Base URL:** `https://api.element14.com/catalog/products`

GET https://api.element14.com/catalog/products

"type": "TechnicalDataSheet",             "description": "Datasheet",             "url": "https://www.farnell.com/datasheets/74273.pdf"

"description": "Datasheet",             "url": "https://www.farnell.com/datasheets/74273.pdf"           }

"url": "https://www.farnell.com/datasheets/74273.pdf"

[Credential-related source omitted]

# Direct URL download python3 <skill-path>/scripts/fetch_datasheet_element14.py "https://www.farnell.com/datasheets/74273.pdf" -o datasheet.pdf

python3 <skill-path>/scripts/fetch_datasheet_element14.py "https://www.farnell.com/datasheets/74273.pdf" -o datasheet.pdf

https://www.newark.com/search?st=<query>

https://uk.farnell.com/search?st=<query>

#!/usr/bin/env python3

[Credential-related source omitted]

[Credential-related source omitted]

[Credential-related source omitted]

[Credential-related source omitted]

[Credential-related source omitted]

[Credential-related source omitted]

[Credential-related source omitted]

[Credential-related source omitted]

url = f"https://api.element14.com/catalog/products?{urllib.parse.urlencode(params)}"

try:         req = urllib.request.Request(url, headers={"User-Agent": _USER_AGENT})

req = urllib.request.Request(url, headers={"User-Agent": _USER_AGENT})

with urllib.request.urlopen(req, timeout=15) as resp:

req = urllib.request.Request(url, headers={"User-Agent": _USER_AGENT})

with urllib.request.urlopen(req, timeout=20) as resp:

if any(x in mpn_upper for x in ("ATMEGA", "ATTINY", "PIC", "SAMD", "SAM")):         alternatives.append(             f"https://ww1.microchip.com/downloads/aemDocuments/documents/MCU08/ProductDocuments/DataSheets/{mpn}-DataSheet.pdf"

alternatives.append(             f"https://ww1.microchip.com/downloads/aemDocuments/documents/MCU08/ProductDocuments/DataSheets/{mpn}-DataSheet.pdf"         )

f"https://ww1.microchip.com/downloads/aemDocuments/documents/MCU08/ProductDocuments/DataSheets/{mpn}-DataSheet.pdf"

[Credential-related source omitted]

[Credential-related source omitted]

[Credential-related source omitted]

else:                 print("Error: ELEMENT14_API_KEY environment variable not set", file=sys.stderr)                 print("Get a free key at https://partner.element14.com/member/register",

[Credential-related source omitted]

[Credential-related source omitted]

print("Get a free key at https://partner.element14.com/member/register",

[Credential-related source omitted]

#!/usr/bin/env python3

[Credential-related source omitted]

[Credential-related source omitted]

[Credential-related source omitted]

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Source: [47 CFR §15.109](https://www.law.cornell.edu/cfr/text/47/15.109) — "Radiated emission limits."

Source: [47 CFR §15.107](https://www.law.cornell.edu/cfr/text/47/15.107) — "Conducted limits."

- 47 CFR Part 15 — [Cornell Law Institute](https://www.law.cornell.edu/cfr/text/47/part-15)

- **Threshold:** 5mm warning, 8mm critical - **Rationale:** Connection inductance increases with trace length. For microstrip over ground, loop inductance is approximately 0.3–0.8 nH/mm (Bogatin Rule of Thumb #6: 50Ω FR4 ≈ 8.3 nH/inch ≈ 0.3

- **Rationale:** Connection inductance increases with trace length. For microstrip over ground, loop inductance is approximately 0.3–0.8 nH/mm (Bogatin Rule of Thumb #6: 50Ω FR4 ≈ 8.3 nH/inch ≈ 0.33 nH/mm). However, connection inductance is

- **Source:** Bogatin, E. "Total Loop Inductance per Length in 50-Ohm Transmission Lines." EDN Rule of Thumb #6. Hubing, T.H. ["Estimating the Connection Inductance of Decoupling Capacitors."](https://learnemc.com/estimating-connection-indu

- **Threshold:** Average via spacing > 2× required λ/20 spacing - **Rationale:** Ground via stitching prevents parallel-plate waveguide modes from propagating between planes. λ/20 is the conservative recommendation for high-isolation applic

- **Source:** [Altium — "Everything You Need to Know About Stitching Vias"](https://resources.altium.com/p/everything-you-need-know-about-stitching-vias) — λ/20 for >120 dB isolation, λ/10 for general use.

- **Severity:** HIGH - **Threshold:** Two signal-type layers adjacent without ground/power plane between them - **Source:** Ott, H.W. ["PCB Stack-Up."](http://www.hottconsultants.com/techtips/pcb-stack-up-2.html) hottconsultants.com — recom

- **Source:** Ott, H.W. ["PCB Stack-Up."](http://www.hottconsultants.com/techtips/pcb-stack-up-2.html) hottconsultants.com — recommended 4-layer stackup is SIG/GND/PWR/SIG with tight coupling (0.1–0.2mm) between signal and adjacent referenc

- **Rationale:** Thin dielectric between power/ground pairs provides interplane capacitance for high-frequency decoupling. - **Value:** C = ε₀ × εr / d. For 0.15mm FR4 (εr=4.4): **~26 pF/cm²** (~168 pF/in²). - **Source:** [LearnEMC — "Decou

- **Source:** [LearnEMC — "Decoupling for Boards with Closely-Spaced Power Planes"](https://learnemc.com/decoupling-for-boards-with-closely-spaces-power-planes). Armstrong, K. PCB EMC Design Part 4 — recommends thin prepreg between power/gr

Source: Ott, *EMC Engineering*, Ch. 6; Paul, *Introduction to EMC*, Ch. 10; [LearnEMC DM Radiation Calculator](https://learnemc.com/ext/calculators/mremc/dmode.php).

Source: Ott, *EMC Engineering*, Ch. 6; Paul, *Introduction to EMC*, Ch. 10; [LearnEMC CM EMI Calculator](https://learnemc.com/ext/calculators/mremc/cmode.php).

- **Severity:** HIGH (external connectors), MEDIUM (general) - **Threshold:** Via spacing in 10mm radius exceeds 2× λ/20 for the connector's highest-frequency signal - **Source:** [Altium — "Everything You Need to Know About Stitching Vias"

- **Source:** [Altium — "Everything You Need to Know About Stitching Vias"](https://resources.altium.com/p/everything-you-need-know-about-stitching-vias); Ott, *EMC Engineering*, Ch. 16.

- Johnson, H.W. *High-Speed Signal Propagation: Advanced Black Magic.* Prentice Hall, 2003. - Bogatin, E. *Signal and Power Integrity — Simplified.* 3rd ed., Prentice Hall, 2018. - Bogatin, E. ["Rules of Thumb."](https://www.colorado.edu/fa

- Bogatin, E. *Signal and Power Integrity — Simplified.* 3rd ed., Prentice Hall, 2018. - Bogatin, E. ["Rules of Thumb."](https://www.colorado.edu/faculty/bogatin/publications/rules-thumb) University of Colorado. - Hubing, T.H. [LearnEMC.com

- Bogatin, E. ["Rules of Thumb."](https://www.colorado.edu/faculty/bogatin/publications/rules-thumb) University of Colorado.

- Hubing, T.H. [LearnEMC.com](https://learnemc.com/) — EMC education, calculators, design guidelines.

- Armstrong, K. "PCB Design Techniques for Lowest-Cost EMC Compliance." 8-part series, Cherry Clough Consultants. - Goldfarb, E. & Pucha, R. IEEE Microwave and Guided Wave Letters, Vol. 1, No. 6, 1991. - [47 CFR Part 15](https://www.law.cor

- Goldfarb, E. & Pucha, R. IEEE Microwave and Guided Wave Letters, Vol. 1, No. 6, 1991. - [47 CFR Part 15](https://www.law.cornell.edu/cfr/text/47/part-15) — FCC regulations for unintentional radiators. - USB 2.0 Specification, §7.1.2 — Sig

- [47 CFR Part 15](https://www.law.cornell.edu/cfr/text/47/part-15) — FCC regulations for unintentional radiators.

- PCI Express Base Specification, §4.3.3 — Differential pair skew requirements. - HDMI 2.1 Specification, §4.2.1.1 — TMDS signaling requirements. - [Cadence — "Differential Pair Length Matching Guidelines"](https://resources.cadence.com/)

- HDMI 2.1 Specification, §4.2.1.1 — TMDS signaling requirements. - [Cadence — "Differential Pair Length Matching Guidelines"](https://resources.cadence.com/) - [Altium — "Guide to Mode Conversion, Its Causes, and Solutions"](https://resour

- [Cadence — "Differential Pair Length Matching Guidelines"](https://resources.cadence.com/)

- [Altium — "Guide to Mode Conversion, Its Causes, and Solutions"](https://resources.altium.com/)

#!/usr/bin/env python3

Executable file

Executable file

# Source: Paul "Introduction to EMC" (Wiley, 2006) Eq. 10.12     # Verified: MSU EMC Lab Module 9 p.9-16 derives K=1.317e-14 (matches to 4 sig figs)     # URL: https://www.egr.msu.edu/emrg/sites/default/files/content/module9_radiated_emissi

# URL: https://www.egr.msu.edu/emrg/sites/default/files/content/module9_radiated_emissions.pdf

# Source: Paul "Introduction to EMC" (Wiley, 2006) Ch. 10     # Verified: MSU EMC Lab Module 9 p.9-20 derives coefficient 1.257e-6 exactly     # URL: https://www.egr.msu.edu/emrg/sites/default/files/content/module9_radiated_emissions.pdf

# URL: https://www.egr.msu.edu/emrg/sites/default/files/content/module9_radiated_emissions.pdf

# EQ-006: f_mn = (c/2√εr) × √((m/L)² + (n/W)²) (PCB cavity resonance)     # Source: Pozar "Microwave Engineering" (Wiley, 2011) Ch. 6     # URL: https://learnemc.com/ext/calculators/cavity_resonance/pcb-res.html

# URL: https://learnemc.com/ext/calculators/cavity_resonance/pcb-res.html

# EQ-007: BW = 0.35/t_r (3dB bandwidth from 10-90% rise time)     # Source: Bogatin "Signal Integrity - Simplified" (Prentice Hall, 2004) Ch. 1     # URL: https://www.edn.com/rule-of-thumb-1-bandwidth-of-a-signal-from-its-rise-time/

# URL: https://www.edn.com/rule-of-thumb-1-bandwidth-of-a-signal-from-its-rise-time/

# EQ-010: L = 0.2h(ln(4h/d)+1) nH (via self-inductance)     # Source: Goldfarb & Pucel, IEEE MGWL Vol.1 No.6 pp.135-137, June 1991     # URL: https://www.semanticscholar.org/paper/Modeling-via-hole-grounds-in-microstrip-Goldfarb-Pucel/a3f46

# URL: https://www.semanticscholar.org/paper/Modeling-via-hole-grounds-in-microstrip-Goldfarb-Pucel/a3f4614877b750e7b7eec1dfa5924d5ce8b99301

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- Parts library: `https://jlcpcb.com/parts/componentSearch?searchTxt=<query>`

- Basic parts only: `https://jlcpcb.com/parts/basic_parts`

Apply at `https://api.jlcpcb.com`. Access is gated — requires review based on order history and business profile.

1. **Export gerbers** from KiCad (see `bom` skill for export settings) 2. Upload gerbers to `https://cart.jlcpcb.com/quote` — configure layers, thickness, color, qty

2. Upload gerbers to `https://cart.jlcpcb.com/quote` — configure layers, thickness, color, qty

2. **Export BOM** as CSV with LCSC part numbers (format above) 3. **Export CPL** (placement file) as CSV (see `bom` skill for format) 4. Upload gerbers to `https://cart.jlcpcb.com/quote` — configure layers, thickness, color, qty

3. **Export CPL** (placement file) as CSV (see `bom` skill for format) 4. Upload gerbers to `https://cart.jlcpcb.com/quote` — configure layers, thickness, color, qty 5. Enable "PCB Assembly", select Economic or Standard

4. Upload gerbers to `https://cart.jlcpcb.com/quote` — configure layers, thickness, color, qty

[Credential-related source omitted]

`eval()`, `exec()`, or any code execution primitive. The parser produces

- Requirements: <https://certification.oshwa.org/requirements.html>

- Certification process: <https://certification.oshwa.org/process.html>

- Hardware licensing: <https://certification.oshwa.org/process/hardware.html>

- Software licensing: <https://certification.oshwa.org/process/software.html>

- Documentation: <https://certification.oshwa.org/process/documentation.html>

- Certification mark: <https://certification.oshwa.org/mark-usage.html>

- License agreement: <https://certification.oshwa.org/license-agreement.html>

- **Power pins:** Does every VDD pin have a decoupling cap?    - **Digital thresholds:** For digital inputs, are `threshold_high_v`/`threshold_low_v` met?    - **NC pins:** Are pins marked as no-connect actually unconnected?

- **Digital thresholds:** For digital inputs, are `threshold_high_v`/`threshold_low_v` met?    - **NC pins:** Are pins marked as no-connect actually unconnected? 4. **Cite extraction data** in findings

- **NC pins:** Are pins marked as no-connect actually unconnected?

| **USB Type-A** | 1=VBUS, 2=D-, 3=D+, 4=GND | D+/D- swap | | **USB Type-B** | Same as Type-A | D+/D- swap | | **USB Micro-B** | 1=VBUS, 2=D-, 3=D+, 4=ID, 5=GND | D+/D- swap, ID left floating (should be NC for device) |

| **USB Type-B** | Same as Type-A | D+/D- swap | | **USB Micro-B** | 1=VBUS, 2=D-, 3=D+, 4=ID, 5=GND | D+/D- swap, ID left floating (should be NC for device) | | **USB Type-C** | A6/B6=D+, A7/B7=D-, A5=CC1, B5=CC2 | Missing CC resistors (5.

| **USB Micro-B** | 1=VBUS, 2=D-, 3=D+, 4=ID, 5=GND | D+/D- swap, ID left floating (should be NC for device) |

| `C` | Open collector | Requires pull-up | | `E` | Open emitter | Requires pull-down | | `N` | Not connected | NC pin |

| `N` | Not connected | NC pin |

{   "$schema": "https://json-schema.org/draft/2020-12/schema",

"$schema": "https://json-schema.org/draft/2020-12/schema",

{   "$schema": "https://json-schema.org/draft/2020-12/schema",

"$schema": "https://json-schema.org/draft/2020-12/schema",

"$id": "https://kicad-happy.dev/schemas/design_context.schema.json",

{   "$schema": "https://json-schema.org/draft/2020-12/schema",

"$schema": "https://json-schema.org/draft/2020-12/schema",

"$id": "https://kicad-happy.dev/schemas/review_annotations.schema.json",

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#!/usr/bin/env python3

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#!/usr/bin/env python3

#!/usr/bin/env python3

# Source: Standard computational geometry. Circumscribed circle             #   from 3 points:             #   https://en.wikipedia.org/wiki/Circumscribed_circle#Circumscribed_circles_of_triangles

#   from 3 points:             #   https://en.wikipedia.org/wiki/Circumscribed_circle#Circumscribed_circles_of_triangles             #   Arc bbox via cardinal-crossing test is a well-known CAD/CAM

#   https://en.wikipedia.org/wiki/Circumscribed_circle#Circumscribed_circles_of_triangles

# Wheeler's equations     # Source: IPC-2141 Design Guide     # Verified: https://f4inx.github.io/posts/microstrip-formulas-comparison.html

# Verified: https://f4inx.github.io/posts/microstrip-formulas-comparison.html

classes = []     for nc in find_all(root, "net_class"):

for nc in find_all(root, "net_class"):

_net_class_lookup: dict[str, dict] = {}  # net_name -> class constraints     if net_classes:         for nc in net_classes:

if net_classes:         for nc in net_classes:             nc_name = nc.get('name', '')

for nc in net_classes:

all_widths.append(w)         seg_net_name = seg.get("net_name", "")         nc = _net_class_lookup.get(seg_net_name)

seg_net_name = seg.get("net_name", "")         nc = _net_class_lookup.get(seg_net_name)         if nc and nc.get('trace_width') is not None:

nc = _net_class_lookup.get(seg_net_name)

if nc and nc.get('trace_width') is not None:

all_widths.append(w)         arc_net_name = arc.get("net_name", "")         nc = _net_class_lookup.get(arc_net_name)

arc_net_name = arc.get("net_name", "")         nc = _net_class_lookup.get(arc_net_name)         if nc and nc.get('trace_width') is not None:

nc = _net_class_lookup.get(arc_net_name)

if nc and nc.get('trace_width') is not None:

net_class_summary = []     for nc in net_classes:

for nc in net_classes:

nc_by_net: dict[str, dict] = {}         for nc in net_classes:

for nc in net_classes:

for seg in tracks.get('segments', []):             net_name = seg.get('net_name', '')             nc = nc_by_net.get(net_name)

net_name = seg.get('net_name', '')             nc = nc_by_net.get(net_name)             if not nc:

nc = nc_by_net.get(net_name)

for v in vias.get('vias', []):             net_name = v.get('net_name', '')             nc = nc_by_net.get(net_name)

net_name = v.get('net_name', '')             nc = nc_by_net.get(net_name)             if not nc:

nc = nc_by_net.get(net_name)

#!/usr/bin/env python3

ncs = []     for nc in find_all(root, "no_connect"):

for nc in find_all(root, "no_connect"):

if no_connects:         for nc in no_connects:

for nc in no_connects:

# add_point() already shares the coordinate key with a pin or wire             # endpoint on the same point, which is all the absorption and NC             # tagging described above needs. Unioning the marker with every

# endpoint on the same point, which is all the absorption and NC             # tagging described above needs. Unioning the marker with every             # *overlapping* wire also caught wires passing mid-span beneath it,

# Check if any member of this group is a no-connect marker OR a         # library-defined NC pin (pin type "no_connect" in the symbol def).

# library-defined NC pin (pin type "no_connect" in the symbol def).

nc_positions = set()     for nc in no_connects:

for nc in no_connects:

# Check if pin has a no-connect marker (by position, net flag, or             # library-defined NC pin type).

# library-defined NC pin type).

# The net-level no_connect flag is set when *any* point in a net's             # union-find group is an NC marker (extract_nets line ~1490). On a

# union-find group is an NC marker (extract_nets line ~1490). On a

# genuinely-connected multi-pin net it must NOT mark every pin as             # NO_CONNECT — e.g. a stray NC marker absorbed into VBUS/GND would             # otherwise flip all of that rail's IC pins to NO_CONNECT. Only honor

# NO_CONNECT — e.g. a stray NC marker absorbed into VBUS/GND would

for j in junctions:             j["_sheet"] = sheet_idx         for nc in no_connects:

j["_sheet"] = sheet_idx         for nc in no_connects:             nc["_sheet"] = sheet_idx

for nc in no_connects:

nc_positions = set()     for nc in no_connects:

for nc in no_connects:

def verify_pin_coverage(components: list[dict], lib_symbols: dict) -> list[dict]:     """Verify that all non-NC library pins are accounted for on placed symbols.

"""Verify that all non-NC library pins are accounted for on placed symbols.

for j in junctions:             j["_sheet"] = sheet_idx         for nc in no_connects:

j["_sheet"] = sheet_idx         for nc in no_connects:             nc["_sheet"] = sheet_idx

for nc in no_connects:

for j in junctions:                             j["_sheet"] = sheet_idx                         for nc in no_connects:

j["_sheet"] = sheet_idx                         for nc in no_connects:                             nc["_sheet"] = sheet_idx

for nc in no_connects:

[Credential-related source omitted]

#!/usr/bin/env python3

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#!/usr/bin/env python3

#!/usr/bin/env python3

#!/usr/bin/env python3

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#!/usr/bin/env python3

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series_resistor = None         has_transistor_driver = False         for nc in net_comps:

has_transistor_driver = False         for nc in net_comps:             if nc["type"] == "ic":

for nc in net_comps:

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"description": "KiCad library ID of the symbol."})     expected_pins: int = field(metadata={         "description": "Count of non-NC pins in the library symbol."})

expected_pins: int = field(metadata={         "description": "Count of non-NC pins in the library symbol."})     placed_pins: int = field(metadata={

"description": "Count of non-NC pins in the library symbol."})

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#!/usr/bin/env python3

Python 3.8+ stdlib only. Requires ``gh`` CLI (https://cli.github.com/).

lines.append(         "*Generated by [kicad-happy](https://github.com/aklofas/kicad-happy)*"

"*Generated by [kicad-happy](https://github.com/aklofas/kicad-happy)*"

print(             "error: gh CLI is not available or not authenticated.\n"             "Install: https://cli.github.com/\n"

"error: gh CLI is not available or not authenticated.\n"             "Install: https://cli.github.com/\n"             "Authenticate: gh auth login",

"Install: https://cli.github.com/\n"

#!/usr/bin/env python3

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#!/usr/bin/env python3

[Credential-related source omitted]

[Credential-related source omitted]

[Credential-related source omitted]

[Credential-related source omitted]

[Credential-related source omitted]

[Credential-related source omitted]

[Credential-related source omitted]

[Credential-related source omitted]

"grant_type": "client_credentials",         }).encode()         req = urllib.request.Request(

}).encode()         req = urllib.request.Request(             "https://api.digikey.com/v1/oauth2/token",

req = urllib.request.Request(

"https://api.digikey.com/v1/oauth2/token",

headers={"Content-Type": "application/x-www-form-urlencoded"},         )         with urllib.request.urlopen(req, timeout=10) as resp:

)         with urllib.request.urlopen(req, timeout=10) as resp:             token_data = json.loads(resp.read())

with urllib.request.urlopen(req, timeout=10) as resp:

[Credential-related source omitted]

[Credential-related source omitted]

try:         body = json.dumps({"Keywords": mpn, "Limit": 3}).encode()         req = urllib.request.Request(

body = json.dumps({"Keywords": mpn, "Limit": 3}).encode()         req = urllib.request.Request(             "https://api.digikey.com/products/v4/search/keyword",

req = urllib.request.Request(

"https://api.digikey.com/products/v4/search/keyword",

},         )         with urllib.request.urlopen(req, timeout=10) as resp:

)         with urllib.request.urlopen(req, timeout=10) as resp:             data = json.loads(resp.read())

with urllib.request.urlopen(req, timeout=10) as resp:

[Credential-related source omitted]

[Credential-related source omitted]

[Credential-related source omitted]

[Credential-related source omitted]

[Credential-related source omitted]

[Credential-related source omitted]

req = urllib.request.Request(url, data=body, headers={"Content-Type": "application/json"})

with urllib.request.urlopen(req, timeout=10) as resp:

try:         url = f"https://jlcsearch.tscircuit.com/api/search?q={urllib.parse.quote(mpn)}&limit=3&full=true"

url = f"https://jlcsearch.tscircuit.com/api/search?q={urllib.parse.quote(mpn)}&limit=3&full=true"

req = urllib.request.Request(url, headers={"User-Agent": "kicad-happy-lifecycle/1.0"})

with urllib.request.urlopen(req, timeout=10) as resp:

[Credential-related source omitted]

[Credential-related source omitted]

[Credential-related source omitted]

"resultsSettings.responseGroup": "medium",         })         url = f"https://api.element14.com/catalog/products?{params}"

})         url = f"https://api.element14.com/catalog/products?{params}"         req = urllib.request.Request(url, headers={"Accept": "application/json"})

url = f"https://api.element14.com/catalog/products?{params}"         req = urllib.request.Request(url, headers={"Accept": "application/json"})         with urllib.request.urlopen(req, timeout=10) as resp:

req = urllib.request.Request(url, headers={"Accept": "application/json"})

with urllib.request.urlopen(req, timeout=10) as resp:

[Credential-related source omitted]

[Credential-related source omitted]

[Credential-related source omitted]

[Credential-related source omitted]

[Credential-related source omitted]

[Credential-related source omitted]

req = urllib.request.Request(url, data=body,

headers={"Content-Type": "application/json"})                 with urllib.request.urlopen(req, timeout=10) as resp:                     data = json.loads(resp.read())

with urllib.request.urlopen(req, timeout=10) as resp:

time.sleep(delay)                     body = json.dumps({"Keywords": base_mpn, "Limit": 5}).encode()                     req = urllib.request.Request(

body = json.dumps({"Keywords": base_mpn, "Limit": 5}).encode()                     req = urllib.request.Request(                         "https://api.digikey.com/products/v4/search/keyword",

req = urllib.request.Request(

"https://api.digikey.com/products/v4/search/keyword",

},                     )                     with urllib.request.urlopen(req, timeout=10) as resp:

)                     with urllib.request.urlopen(req, timeout=10) as resp:                         data = json.loads(resp.read())

with urllib.request.urlopen(req, timeout=10) as resp:

try:                 time.sleep(delay)                 url = f"https://jlcsearch.tscircuit.com/api/search?q={urllib.parse.quote(base_mpn)}&limit=5&full=true"

time.sleep(delay)                 url = f"https://jlcsearch.tscircuit.com/api/search?q={urllib.parse.quote(base_mpn)}&limit=5&full=true"                 req = urllib.request.Request(url, headers={"User-Agent": "kicad-happy-lifecycle/1.0"})

url = f"https://jlcsearch.tscircuit.com/api/search?q={urllib.parse.quote(base_mpn)}&limit=5&full=true"

req = urllib.request.Request(url, headers={"User-Agent": "kicad-happy-lifecycle/1.0"})

with urllib.request.urlopen(req, timeout=10) as resp:

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net_classes = pcb.get('net_classes', [])         non_default = [nc for nc in net_classes

non_default = [nc for nc in net_classes

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_SCHEMA_URI = "https://json-schema.org/draft/2020-12/schema"

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#!/usr/bin/env python3

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#!/usr/bin/env python3

- **Low MOQ** — many parts available in quantities as low as 1 - **Warehouses** — Shenzhen (JS), Zhuhai (ZH), Hong Kong (HK) - **Website**: `https://www.lcsc.com`

- **Website**: `https://www.lcsc.com`

**Base URL:** `https://jlcsearch.tscircuit.com`

GET https://wmsc.lcsc.com/ftps/wm/product/detail?productCode=C318884

# Direct URL download python3 <skill-path>/scripts/fetch_datasheet_lcsc.py "https://wmsc.lcsc.com/..." -o datasheet.pdf

python3 <skill-path>/scripts/fetch_datasheet_lcsc.py "https://wmsc.lcsc.com/..." -o datasheet.pdf

**Base URL:** `https://ips.lcsc.com`. Requires API key + signature authentication. Contact `support@lcsc.com` for access. Rarely needed — jlcsearch covers most use cases.

https://www.lcsc.com/search?q=<query>

#!/usr/bin/env python3

url = f"https://jlcsearch.tscircuit.com/api/search?q={urllib.parse.quote(query)}&limit=5&full=true"

try:         req = urllib.request.Request(url, headers={"User-Agent": _USER_AGENT})         with urllib.request.urlopen(req, timeout=15) as resp:

req = urllib.request.Request(url, headers={"User-Agent": _USER_AGENT})

with urllib.request.urlopen(req, timeout=15) as resp:

url = f"https://wmsc.lcsc.com/ftps/wm/product/detail?productCode={lcsc_code.upper()}"     try:         req = urllib.request.Request(url, headers={

try:         req = urllib.request.Request(url, headers={             "User-Agent": _USER_AGENT,

req = urllib.request.Request(url, headers={

"Accept": "application/json",         })         with urllib.request.urlopen(req, timeout=15) as resp:

})         with urllib.request.urlopen(req, timeout=15) as resp:             data = json.loads(resp.read())

with urllib.request.urlopen(req, timeout=15) as resp:

req = urllib.request.Request(url, headers={"User-Agent": _USER_AGENT})

with urllib.request.urlopen(req, timeout=20) as resp:

if any(x in mpn_upper for x in ("ATMEGA", "ATTINY", "PIC", "SAMD", "SAM")):         alternatives.append(             f"https://ww1.microchip.com/downloads/aemDocuments/documents/MCU08/ProductDocuments/DataSheets/{mpn}-DataSheet.pdf"

alternatives.append(             f"https://ww1.microchip.com/downloads/aemDocuments/documents/MCU08/ProductDocuments/DataSheets/{mpn}-DataSheet.pdf"         )

f"https://ww1.microchip.com/downloads/aemDocuments/documents/MCU08/ProductDocuments/DataSheets/{mpn}-DataSheet.pdf"

#!/usr/bin/env python3

_USER_AGENT = "Mozilla/5.0 (X11; Linux x86_64; rv:128.0) Gecko/20100101 Firefox/128.0" _JLCSEARCH_BASE = "https://jlcsearch.tscircuit.com"

_JLCSEARCH_BASE = "https://jlcsearch.tscircuit.com"

req = urllib.request.Request(url, headers={"User-Agent": _USER_AGENT})

with urllib.request.urlopen(req, timeout=15) as resp:

#!/usr/bin/env python3

#!/usr/bin/env python3

"mfr": "TS-1187A-B-A-B",     "description": "Tactile Switch SPST 160gf 1.5mm 5.1mm x 5.1mm Surface Mount",     "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/56c8.pdf?productCode=C318884",

"description": "Tactile Switch SPST 160gf 1.5mm 5.1mm x 5.1mm Surface Mount",     "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/56c8.pdf?productCode=C318884",     "stock": 597040,

"datasheet": "https://datasheet.lcsc.com/datasheet/pdf/56c8.pdf?productCode=C318884",

"description": "Tactile Switch SPST 160gf 1.5mm 5.1mm x 5.1mm Surface Mount",         "manufacturer": {"name": "XKB Connection"},         "datasheet": {"pdf": "https://datasheet.lcsc.com/datasheet/pdf/56c8.pdf?productCode=C318884"},

"manufacturer": {"name": "XKB Connection"},         "datasheet": {"pdf": "https://datasheet.lcsc.com/datasheet/pdf/56c8.pdf?productCode=C318884"},     },

"datasheet": {"pdf": "https://datasheet.lcsc.com/datasheet/pdf/56c8.pdf?productCode=C318884"},

def test_general_search_reads_components(self):         with patch("urllib.request.urlopen", _mock_urlopen({"components": [SEARCH_HIT]})) as mock_open:

with patch("urllib.request.urlopen", _mock_urlopen({"components": [SEARCH_HIT]})) as mock_open:

def test_category_search_reads_category_key(self):         with patch("urllib.request.urlopen", _mock_urlopen({"resistors": [CATEGORY_ROW]})) as mock_open:

with patch("urllib.request.urlopen", _mock_urlopen({"resistors": [CATEGORY_ROW]})) as mock_open:

def test_category_search_no_list_value(self):         with patch("urllib.request.urlopen", _mock_urlopen({"error": "not found"})):

with patch("urllib.request.urlopen", _mock_urlopen({"error": "not found"})):

"stock": 2500000,             "price_usd": 0.0034,             "datasheet_url": "https://example.com/resistor.pdf",

"price_usd": 0.0034,             "datasheet_url": "https://example.com/resistor.pdf",             "attributes": {"Resistance": "100Ω", "Power": "125mW"},

"datasheet_url": "https://example.com/resistor.pdf",

self.assertIn("JLCPCB Type:    Basic", output)         self.assertIn("Resistance: 100Ω", output)         self.assertIn("https://example.com/resistor.pdf", output)

self.assertIn("Resistance: 100Ω", output)         self.assertIn("https://example.com/resistor.pdf", output)         self.assertIn("100+: $0.0034 USD", output)

self.assertIn("https://example.com/resistor.pdf", output)

1. Go to [mouser.com](https://www.mouser.com) → My Mouser → My Account

[Credential-related source omitted]

# Direct URL download python3 <skill-path>/scripts/fetch_datasheet_mouser.py "https://example.com/datasheet.pdf" -o datasheet.pdf

python3 <skill-path>/scripts/fetch_datasheet_mouser.py "https://example.com/datasheet.pdf" -o datasheet.pdf

- Search URL: `https://www.mouser.com/c/?q=<query>`

#!/usr/bin/env python3

[Credential-related source omitted]

[Credential-related source omitted]

[Credential-related source omitted]

[Credential-related source omitted]

[Credential-related source omitted]

[Credential-related source omitted]

[Credential-related source omitted]

}     }).encode("utf-8")     req = urllib.request.Request(

}).encode("utf-8")     req = urllib.request.Request(         url, data=body,

req = urllib.request.Request(

)     try:         with urllib.request.urlopen(req, timeout=20) as resp:

try:         with urllib.request.urlopen(req, timeout=20) as resp:             data = json.loads(resp.read())

with urllib.request.urlopen(req, timeout=20) as resp:

req = urllib.request.Request(url, headers={"User-Agent": _USER_AGENT})

with urllib.request.urlopen(req, timeout=20) as resp:

if not product_url.startswith("http"):         product_url = "https://www.mouser.com" + product_url

product_url = "https://www.mouser.com" + product_url

if not html:         try:             req = urllib.request.Request(product_url, headers=headers)

try:             req = urllib.request.Request(product_url, headers=headers)             with urllib.request.urlopen(req, timeout=20) as resp:

req = urllib.request.Request(product_url, headers=headers)

with urllib.request.urlopen(req, timeout=20) as resp:

url = match.group(1)             if url.startswith("/"):                 url = "https://www.mouser.com" + url

if url.startswith("/"):                 url = "https://www.mouser.com" + url             return url

url = "https://www.mouser.com" + url

if any(x in mpn_upper for x in ("ATMEGA", "ATTINY", "PIC", "SAMD", "SAM")):         alternatives.append(             f"https://ww1.microchip.com/downloads/aemDocuments/documents/MCU08/ProductDocuments/DataSheets/{mpn}-DataSheet.pdf"

alternatives.append(             f"https://ww1.microchip.com/downloads/aemDocuments/documents/MCU08/ProductDocuments/DataSheets/{mpn}-DataSheet.pdf"         )

f"https://ww1.microchip.com/downloads/aemDocuments/documents/MCU08/ProductDocuments/DataSheets/{mpn}-DataSheet.pdf"

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#!/usr/bin/env python3

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Contact PCBWay for partner API access. Partner API at `https://api-partner.pcbway.com`.

Documentation: `https://api-partner.pcbway.com/Help`

1. **Export gerbers** from KiCad (see `bom` skill for export settings) 2. Upload gerbers to `https://www.pcbway.com/orderonline.aspx` — configure layers, thickness, color, qty

2. Upload gerbers to `https://www.pcbway.com/orderonline.aspx` — configure layers, thickness, color, qty

3. Order a **framed stencil** separately at `https://www.pcbway.com/stencil.aspx`

- **ngspice** — `sudo apt install ngspice` (Linux) / `brew install ngspice` (macOS) / ngspice.sourceforge.io (Windows). Most common choice.

| Rm (motional resistance) | 40 kΩ | 30 Ω |

**These are generic estimates.** Real crystal parameters vary significantly between manufacturers and even batches. The datasheet specifies Rm (ESR) and CL (load capacitance) — these are the two most important parameters for oscillator desi

#!/usr/bin/env python3

# EQ-018: L = (µ₀H/2π)ln(2H/D) (via self-inductance)     # Source: Goldfarb & Pucel, IEEE MGWL Vol.1 No.6 pp.135-137, June 1991     # URL: https://www.semanticscholar.org/paper/a3f4614877b750e7b7eec1dfa5924d5ce8b99301

# URL: https://www.semanticscholar.org/paper/a3f4614877b750e7b7eec1dfa5924d5ce8b99301

#!/usr/bin/env python3

Executable file

Executable file

Executable file

Executable file

Executable file

rm = sim_results.get("rm")

"model_note": "generic crystal equivalent circuit — actual Rm may differ",

if rm is not None:

if rm > rm_limit:

Executable file

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Executable file

try:         url = f"https://jlcsearch.tscircuit.com/api/search?q={urllib.parse.quote(mpn)}&limit=5&full=true"

url = f"https://jlcsearch.tscircuit.com/api/search?q={urllib.parse.quote(mpn)}&limit=5&full=true"

req = urllib.request.Request(url, headers={"User-Agent": "kicad-happy-spice/1.0"})

with urllib.request.urlopen(req, timeout=10) as resp:

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"grant_type": "client_credentials",         }).encode()         req = urllib.request.Request(

}).encode()         req = urllib.request.Request(             "https://api.digikey.com/v1/oauth2/token",

req = urllib.request.Request(

"https://api.digikey.com/v1/oauth2/token",

headers={"Content-Type": "application/x-www-form-urlencoded"},         )         with urllib.request.urlopen(req, timeout=10) as resp:

)         with urllib.request.urlopen(req, timeout=10) as resp:             token_data = json.loads(resp.read())

with urllib.request.urlopen(req, timeout=10) as resp:

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try:         body = json.dumps({"Keywords": mpn, "Limit": 5}).encode()         req = urllib.request.Request(

body = json.dumps({"Keywords": mpn, "Limit": 5}).encode()         req = urllib.request.Request(             "https://api.digikey.com/products/v4/search/keyword",

req = urllib.request.Request(

"https://api.digikey.com/products/v4/search/keyword",

},         )         with urllib.request.urlopen(req, timeout=10) as resp:

)         with urllib.request.urlopen(req, timeout=10) as resp:             data = json.loads(resp.read())

with urllib.request.urlopen(req, timeout=10) as resp:

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"resultsSettings.responseGroup": "medium",         })         url = f"https://api.element14.com/catalog/products?{params}"

})         url = f"https://api.element14.com/catalog/products?{params}"         req = urllib.request.Request(url, headers={"Accept": "application/json"})

url = f"https://api.element14.com/catalog/products?{params}"         req = urllib.request.Request(url, headers={"Accept": "application/json"})         with urllib.request.urlopen(req, timeout=10) as resp:

req = urllib.request.Request(url, headers={"Accept": "application/json"})

with urllib.request.urlopen(req, timeout=10) as resp:

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