component
BDX54C
Public Made by Adomby adom
STMicroelectronics Darlington Transistors, TO-220. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+39@@ -0,0 +1,39 @@+# BDX54C++**STMicroelectronics** · Darlington Transistors · TO-220++BDX54C from STMicroelectronics, in a TO-220. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | B | input | Base terminal of PNP Darlington transistor; maximum base current IB = 0.2 A, maximum base-emitter voltage VEBO = 5 V. |+| 2 | C | passive | Collector terminal (electrically connected to TAB for thermal contact); maximum collector current IC = 8 A continuous or ICM = 12 A peak, maximum collector-base voltage VCBO = 100 V, maximum collector-emitter voltage VCEO = 100 V. |+| 3 | E | passive | Emitter terminal with integrated antiparallel collector-emitter diode for reverse voltage protection; monolithic Darlington configuration. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | STMicroelectronics |+| Package | TO-220 |+| Category | Transistors/Thyristors |+| Pins | 3 |++## CAD (KiCad official)++- Symbol: `BDX54C`+- Footprint: `Package_TO_SOT_THT:TO-220-3_Vertical`+- 3D model: TO-220 (KiCad packages3D, STEP)+- 3D model files: `bdx54c-etched.step` / `bdx54c-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bdx54c.step` / `bdx54c.glb` are the bare package body.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [STMicroelectronics datasheet](https://www.st.com/resource/en/datasheet/bdx54c.pdf) (9 pp, sha256 `d560383e1ef85332`, retrieved 2026-09-23, tier: manufacturer)+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.2`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/bdx54c-datasheet.pdf)
page.jsonadded+111@@ -0,0 +1,111 @@+{+ "slug": "bdx54c",+ "version": "0.1.0",+ "type": "component",+ "description": "STMicroelectronics Darlington Transistors, TO-220. Datasheet-verified pinout, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "transistors-thyristors",+ "bdx54c",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "bdx54c.kicad_sym",+ "bdx54c.kicad_mod",+ "bdx54c.glb",+ "bdx54c.step",+ "bdx54c.lbr",+ "docs/hero.png",+ "docs/bdx54c-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "component": {+ "mpn": "BDX54C",+ "manufacturer": "STMicroelectronics",+ "package": "TO-220",+ "pin_count": 3,+ "category": "Transistors/Thyristors",+ "subcategory": "Darlington Transistors",+ "datasheet": "https://www.st.com/resource/en/datasheet/bdx54c.pdf",+ "parts": {+ "symbol": "bdx54c.kicad_sym",+ "footprint": "bdx54c.kicad_mod",+ "model_3d": "bdx54c-etched.glb",+ "model_3d_plain": "bdx54c.glb",+ "model_3d_step": "bdx54c-etched.step",+ "model_3d_step_plain": "bdx54c.step",+ "lbr": "bdx54c.lbr"+ },+ "distributor_links": {+ "lcsc": "C495219"+ },+ "pins": [+ {+ "number": "1",+ "name": "B",+ "type": "input",+ "description": "Base terminal of PNP Darlington transistor; maximum base current IB = 0.2 A, maximum base-emitter voltage VEBO = 5 V."+ },+ {+ "number": "2",+ "name": "C",+ "type": "passive",+ "description": "Collector terminal (electrically connected to TAB for thermal contact); maximum collector current IC = 8 A continuous or ICM = 12 A peak, maximum collector-base voltage VCBO = 100 V, maximum collector-emitter voltage VCEO = 100 V."+ },+ {+ "number": "3",+ "name": "E",+ "type": "passive",+ "description": "Emitter terminal with integrated antiparallel collector-emitter diode for reverse voltage protection; monolithic Darlington configuration."+ }+ ],+ "provenance": {+ "extractor": "extract_pins 0.2",+ "factory_chain": {+ "factory": "2.0.0",+ "extractor": "extract_pins 0.2",+ "primary_model": "claude-haiku-4-5-20251001",+ "primary_mode": "text",+ "consensus_model": "claude-sonnet-5",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [],+ "pages_sent": 9,+ "cost_usd": 0.0678,+ "at": "2026-09-23T17:42:08"+ },+ "datasheet": {+ "url": "https://www.st.com/resource/en/datasheet/bdx54c.pdf",+ "pages": 9,+ "sha256": "d560383e1ef85332",+ "source_tier": "mfr"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 3,+ "described": 3,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ }+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}