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BDX34C

Public Made by Adom

by adom

STMicroelectronics Darlington Transistors, TO-220. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Generated by kicad-footprint-generator · KiCad file format 20260206
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docs bdx34c: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 2d ago
viewers bdx34c: viewers · Ray 9d ago
bdx34c-etched.fit.json bdx34c: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 2d ago
bdx34c-etched.glb bdx34c: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 2d ago
bdx34c-etched.step bdx34c: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 2d ago
bdx34c.glb Publish 0.1.0 · Ray 9d ago
bdx34c.kicad_mod Publish 0.1.0 · Ray 9d ago
bdx34c.kicad_sym Publish 0.1.0 · Ray 9d ago
bdx34c.lbr Publish 0.1.0 · Ray 9d ago
bdx34c.step Publish 0.1.0 · Ray 9d ago
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README.md Initial commit: component/bdx34c · Ray 9d ago

BDX34C

STMicroelectronics · Darlington Transistors · TO-220

BDX34C from STMicroelectronics, in a TO-220. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 Base input Base input terminal; maximum input current 0.25 A for control of the PNP Darlington transistor.
2 Collector passive Collector terminal; maximum continuous collector current 10 A (15 A peak) at maximum collector-emitter voltage of 100 V.
3 Emitter passive Emitter terminal; main current return path of the PNP Darlington transistor.

Key specifications

Parameter Value
Manufacturer STMicroelectronics
Package TO-220
Category Transistors/Thyristors
Pins 3

CAD (KiCad official)

  • Symbol: BDX34C
  • Footprint: Package_TO_SOT_THT:TO-220-3_Vertical
  • 3D model: TO-220 (KiCad packages3D, STEP)
  • 3D model files: bdx34c-etched.step / bdx34c-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bdx34c.step / bdx34c.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: STMicroelectronics datasheet (4 pp, sha256 3702a741925a6273, retrieved 2026-09-26, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.2, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-4-6 (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