component
BDX34C
Public Made by Adomby adom
STMicroelectronics Darlington Transistors, TO-220. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads on click. Unloads only if this page sits in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads on click. Unloads only if this page sits in the background.
PCB Footprint
Open full view ↗Loads on click. Unloads only if this page sits in the background.
Datasheet
Open in new tab ↗Loads on click. Unloads only if this page sits in the background.
README
markdownBDX34C
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.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bdx34c.step/bdx34c.glbare 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, primaryclaude-haiku-4-5-20251001(text), consensusclaude-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).