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Contents

README

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BCP55-16-MS

MSKSEMI · Bipolar Transistors - BJT · SOT-223

BCP55-16-MS from MSKSEMI, in a SOT-223. 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 BASE input Base terminal; the datasheet's VCE(sat) test uses IB=50mA at IC=500mA.
2 COLLECTOR passive Collector terminal; rated VCBO 45/60/100 V (by part) and IC 1 A continuous.
3 EMITTER passive Emitter terminal; rated VEBO 5 V.

Key specifications

Parameter Value
Manufacturer MSKSEMI
Package SOT-223
Category Triode/MOS Tube/Transistor
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 voltage VCBO 60 V 2
Collector-emitter voltage VCEO 60 V 2
Emitter-base voltage VEBO 5 V 2
Collector current, continuous IC 1 A 2
Collector power dissipation PC 1.5 W 2
Storage temperature range Tstg -65 150 ℃ 2
Thermal resistance junction to ambient RθJA 83.3 ℃/W 2
Collector-base breakdown voltage V(BR)CBO 60 V IC= 0.1mA,IE=0 2
Collector-emitter breakdown voltage V(BR)CEO 60 V IC= 10mA,IB=0 2
Base-emitter breakdown voltage V(BR)EBO 5 V IE= 10μA,IC=0 2
Collector cut-off current ICBO 100 nA VCB= 30 V, IE=0 2
DC current gain hFE(1) hFE(1) 25 VCE= 2V, IC=5mA 2
DC current gain hFE(2) (rank -16) hFE(2) 100 250 VCE= 2V, IC=150m A 2
DC current gain hFE(3) hFE(3) 25 VCE= 2V, IC=500m A 2
Collector-emitter saturation voltage VCE(sat) 0.5 V IC=500mA,IB=50mA 2
Base-emitter voltage VBE 1 V VCE=2V, IC=500m A 2
Transition frequency fT 100 MHz VCE=10V,IC=50mA,f=100MHz 2

CAD (KiCad official)

  • Symbol: BCP55-16-MS
  • Footprint: Package_TO_SOT_SMD:SOT-223-3_TabPin2
  • 3D model: SOT-223 (KiCad packages3D, STEP)
  • 3D model files: bcp55-16-ms-etched.step / bcp55-16-ms-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bcp55-16-ms.step / bcp55-16-ms.glb are the bare package body.

Provenance

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

  • Datasheet: MSKSEMI datasheet (5 pp, sha256 a3be1d65721a1bd9, retrieved 2026-10-27, 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