component

C945W

Public Made by Adom

by adom

CBI Bipolar (BJT), SOT-323. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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C945W

CBI · Bipolar (BJT) · SOT-323

C945W from CBI, in a SOT-323. 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 B input Base of the NPN transistor; VEBO max 5 V, with V(BR)EBO min 5 V at IE=0.1 mA.
2 E passive Emitter of the NPN transistor; IC continuous max 150 mA and PC 200 mW total dissipation.
3 C passive Collector of the NPN transistor; VCBO 60 V, VCEO 50 V, IC continuous 150 mA.

Key specifications

Parameter Value
Manufacturer CBI
Package SOT-323
Category Transistors/Thyristors
Pins 3

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Collector-base breakdown voltage V(BR)CBO 60 V IC=100uA, IE=0 1
Collector-emitter breakdown voltage V(BR)CEO 50 V IC=1mA, IB=0 1
Emitter-base breakdown voltage V(BR)EBO 5 V IE=0.1mA, IC=0 1
Collector cut-off current ICBO 0.1 µA VCB=60V, IE=0 1
Emitter cut-off current IEBO 0.1 µA VEB=5V, IC=0 1
DC current gain hFE(1) 200 400 VCE=6V, IC=1mA 1
DC current gain hFE(2) 40 VCE=6V, IC=0.1mA 1
Collector-emitter saturation voltage VCE(sat) 0.3 V IC=100mA, IB=10mA 1
Base-emitter saturation voltage VBE(sat) 1 V IC=100mA, IB=10mA 1
Collector output capacitance Cob 3 pF VCB=10V, IE=0, f=1MHZ 1
Noise figure NF 4 10 dB VCE=6V, IC=0.1mA, Rg=10kΩ, f=1kMHZ 1
Collector-base voltage VCBO 60 V 1
Collector-emitter voltage VCEO 50 V 1
Emitter-base voltage VEBO 5 V 1
Collector current -continuous IC 150 mA 1
Collector power dissipation PC 200 mW 1
Junction temperature TJ 150 ℃ 1
Storage temperature Tstg -55 150 ℃ 1

CAD (KiCad official)

  • Symbol: C945W
  • Footprint: Package_TO_SOT_SMD:SOT-323_SC-70
  • 3D model: SOT-323 (KiCad packages3D, STEP)
  • 3D model files: c945w-etched.step / c945w-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); c945w.step / c945w.glb are the bare package body.

Provenance

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

  • Datasheet: CBI datasheet (3 pp, sha256 650361c4ae0589c9, retrieved 2026-10-17, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-opus-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