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BC857CDW1T1G

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onsemi Bipolar (BJT), SOT-363. Pinout reviewed by a person against the datasheet, KiCad symbol/footprint/3D.

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BC857CDW1T1G

onsemi · Bipolar (BJT) · SOT-363

BC857CDW1T1G from onsemi, in a SOT-363. 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 EMITTER 2 passive Emitter terminal of the second PNP transistor (Q2) in the dual device; the datasheet gives no pin-specific limit, so use the device maximum ratings (VCEO, VCBO, VEBO, IC).
2 BASE 2 passive Base terminal of the second PNP transistor (Q2) in the dual device; the datasheet gives no pin-specific limit, so use the device maximum ratings (VCEO, VCBO, VEBO, IC).
3 COLLECTOR 1 passive Collector terminal of the first PNP transistor (Q1) in the dual device; the datasheet gives no pin-specific limit, so use the device maximum ratings (VCEO, VCBO, VEBO, IC).
4 EMITTER 1 passive Emitter terminal of the first PNP transistor (Q1) in the dual device; the datasheet gives no pin-specific limit, so use the device maximum ratings (VCEO, VCBO, VEBO, IC).
5 BASE 1 passive Base terminal of the first PNP transistor (Q1) in the dual device; the datasheet gives no pin-specific limit, so use the device maximum ratings (VCEO, VCBO, VEBO, IC).
6 COLLECTOR 2 passive Collector terminal of the second PNP transistor (Q2) in the dual device; the datasheet gives no pin-specific limit, so use the device maximum ratings (VCEO, VCBO, VEBO, IC).

Key specifications

Parameter Value
Manufacturer onsemi
Package SOT-363
Category Transistors/Thyristors
Pins 6

CAD (KiCad official)

  • Symbol: BC857CDW1T1G
  • Footprint: Package_TO_SOT_SMD:SOT-363_SC-70-6
  • 3D model: SOT-363 (KiCad packages3D, STEP)
  • 3D model files: bc857cdw1t1g-etched.step / bc857cdw1t1g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bc857cdw1t1g.step / bc857cdw1t1g.glb are the bare package body.

Provenance

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

  • Datasheet: onsemi datasheet (7 pp, sha256 3a5f33908380e4f2, retrieved 2026-10-22, tier: lcsc)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF