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BC547

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by adom

Changjing Bipolar (BJT), TO-92. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
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BC547

Changjing · Bipolar (BJT) · TO-92

BC547 from Changjing, in a TO-92. 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 COLLECTOR passive Collector terminal of the BC547 NPN transistor; the datasheet gives a collector-emitter voltage of 45 V max and a continuous collector current of 0.1 A max.
2 BASE passive Base terminal of the BC547 NPN transistor; the datasheet gives an emitter-base voltage of 6 V max for this type.
3 EMITTER passive Emitter terminal of the BC547 NPN transistor; the emitter-base voltage rating is 6 V for this type.

Key specifications

Parameter Value
Manufacturer Changjing
Package TO-92
Category Transistors/Thyristors
Pins 3

CAD (KiCad official)

  • Symbol: BC547
  • Footprint: Package_TO_SOT_THT:TO-92_Inline
  • 3D model: TO-92 (KiCad packages3D, STEP)
  • 3D model files: bc547-etched.step / bc547-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bc547.step / bc547.glb are the bare package body.

Provenance

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

  • Datasheet: Changjing datasheet (5 pp, sha256 0c1fdcdb7dd84447, retrieved 2026-10-09, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (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