component

2SC2873-Y

Public Made by Adom

by adom

TOSHIBA Bipolar (BJT), SOT-89. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
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2SC2873-Y

TOSHIBA · Bipolar (BJT) · SOT-89

2SC2873-Y from TOSHIBA, in a SOT-89. 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; drives the NPN transistor, with IB max 0.4 A and VEBO max 5 V.
2 C passive Collector (also the heat sink tab); VCBO and VCEO are 50 V max and IC is 2 A max.
3 E passive Emitter; connect to the common/ground return of the NPN transistor.

Key specifications

Parameter Value
Manufacturer TOSHIBA
Package SOT-89
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 voltage VCBO 50 V 1
Collector-emitter voltage VCEO 50 V 1
Emitter-base voltage VEBO 5 V 1
Collector current IC 2 A 1
Base current IB 0.4 A 1
Collector power dissipation PC 500 mW 1
Collector power dissipation (Note 1) PC 1000 mW Note 1: mounted on a ceramic substrate (250 mm2 × 0.8 t) 1
Junction temperature Tj 150 °C 1
Storage temperature range Tstg -55 150 °C 1
Collector cut-off current ICBO 0.1 μA VCB = 50 V, IE = 0 2
Emitter cut-off current IEBO 0.1 μA VEB = 5 V, IC = 0 2
Collector-emitter breakdown voltage V(BR)CEO 50 V IC = 10 mA, IB = 0 2
DC current gain (Y grade, 120 to 240) hFE(1) 120 240 VCE = 2 V, IC = 0.5 A 2
DC current gain hFE(2) 20 VCE = 2 V, IC = 2.0 A 2
Collector-emitter saturation voltage VCE(sat) 0.5 V IC = 1 A, IB = 0.05 A 2
Base-emitter saturation voltage VBE(sat) 1.2 V IC = 1 A, IB = 0.05 A 2

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
housing PC Base current IB 0.4 A PC 500 1

CAD (KiCad official)

  • Symbol: 2SC2873-Y
  • Footprint: Package_TO_SOT_SMD:SOT-89-3
  • 3D model: SOT-89 (KiCad packages3D, STEP)
  • 3D model files: 2sc2873-y-etched.step / 2sc2873-y-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 2sc2873-y.step / 2sc2873-y.glb are the bare package body.

Provenance

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

  • Datasheet: TOSHIBA datasheet (5 pp, sha256 fce71f6d65a1bf3d, retrieved 2026-10-18, 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