component

BC857BDW1T1G

Public Made by Adom

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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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Generated by kicad-footprint-generator · KiCad file format 20260206
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docs bc857bdw1t1g: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 3d ago
viewers bc857bdw1t1g: viewers · Ray 6d ago
bc857bdw1t1g-etched.fit.json bc857bdw1t1g: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 3d ago
bc857bdw1t1g-etched.glb bc857bdw1t1g: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 3d ago
bc857bdw1t1g-etched.step bc857bdw1t1g: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 3d ago
bc857bdw1t1g.glb Publish 0.1.0 · Ray 6d ago
bc857bdw1t1g.kicad_mod Publish 0.1.0 · Ray 6d ago
bc857bdw1t1g.kicad_sym Publish 0.1.0 · Ray 6d ago
bc857bdw1t1g.lbr Publish 0.1.0 · Ray 6d ago
bc857bdw1t1g.step Publish 0.1.0 · Ray 6d ago
package.json Publish 0.1.0 · Ray 6d ago
page.json Set visibility: public · Ray 6d ago
README.md Initial commit: component/bc857bdw1t1g · Ray 6d ago

BC857BDW1T1G

onsemi · Bipolar (BJT) · SOT-363

BC857BDW1T1G 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 Q2 with maximum emitter-base voltage rating of -5.0 V.
2 BASE 2 input Base terminal of Q2 for control of transistor conduction.
3 COLLECTOR 1 output Collector terminal of Q1 rated for maximum continuous current of -100 mA and collector-emitter voltage of -45 V.
4 EMITTER 1 passive Emitter terminal of Q1 with maximum emitter-base voltage rating of -5.0 V.
5 BASE 1 input Base terminal of Q1 for control of transistor conduction.
6 COLLECTOR 2 output Collector terminal of Q2 rated for maximum continuous current of -100 mA and collector-emitter voltage of -45 V.

Key specifications

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

CAD (KiCad official)

  • Symbol: BC857BDW1T1G
  • Footprint: Package_TO_SOT_SMD:SOT-363_SC-70-6
  • 3D model: SOT-363 (KiCad packages3D, STEP)
  • 3D model files: bc857bdw1t1g-etched.step / bc857bdw1t1g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bc857bdw1t1g.step / bc857bdw1t1g.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 2026-09-29, 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