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2SC945P

Public Made by Adom

by adom

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

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2SC945P

ST(Semtech) · Bipolar Transistors - BJT · TO-92

2SC945P from ST(Semtech), 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 Emitter passive Emitter terminal of the NPN transistor, with emitter-base voltage VEBO rated at 5 V maximum and collector current IC rated at 150 mA maximum.
2 Collector passive Collector terminal of the NPN transistor, rated for collector-base voltage VCBO of 60 V and collector-emitter voltage VCEO of 50 V, with collector current IC of 150 mA and total power dissipation Ptot of 250 mW.
3 Base passive Base terminal of the NPN transistor, which drives the device with IC/IB = 10 at IC = 100 mA for the stated collector-emitter saturation voltage of 0.3 V maximum.

Key specifications

Parameter Value
Manufacturer ST(Semtech)
Package TO-92
Category Transistors
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
DC Current Gain, group P hFE 200 400 at VCE = 6 V, IC = 1 mA; current gain group P 1
Collector Base Cutoff Current ICBO 100 nA at VCB = 40 V 1
Emitter Base Cutoff Current IEBO 100 nA at VEB = 3 V 1
Collector Base Breakdown Voltage V(BR)CBO 60 V at IC = 100 µA 1
Collector Emitter Breakdown Voltage V(BR)CEO 50 V at IC = 10 mA 1
Emitter Base Breakdown Voltage V(BR)EBO 5 V at IE = 10 µA 1
Collector Emitter Saturation Voltage VCE(sat) 0.3 V at IC = 100 mA, IB = 10 mA 1
Gain Bandwidth Product fT 300 MHz at VCE = 6 V, IC = 10 mA 1
Output Capacitance Cob 2.5 pF at VCB = 6 V, f = 1 MHz 1
Collector Base Voltage VCBO 60 V Ta = 25 °C 1
Collector Emitter Voltage VCEO 50 V Ta = 25 °C 1
Emitter Base Voltage VEBO 5 V Ta = 25 °C 1
Collector Current IC 150 mA Ta = 25 °C 1
Power Dissipation Ptot 250 mW Ta = 25 °C 1
Junction Temperature Tj 150 °C 1
Storage Temperature Range Tstg -55 150 °C 1

CAD (KiCad official)

  • Symbol: 2SC945P
  • Footprint: Package_TO_SOT_THT:TO-92_Inline
  • 3D model: TO-92 (KiCad packages3D, STEP)
  • 3D model files: 2sc945p-etched.step / 2sc945p-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 2sc945p.step / 2sc945p.glb are the bare package body.

Provenance

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

  • Datasheet: ST(Semtech) datasheet (2 pp, sha256 f8e3f7b4c6461744, retrieved 2026-10-28, tier: manufacturer)
  • 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