component
2SC2873-Y
Public Made by Adomby adom
TOSHIBA Bipolar (BJT), SOT-89. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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Contents
README
markdown2SC2873-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.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);2sc2873-y.step/2sc2873-y.glbare 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, primaryclaude-sonnet-5-5(text+vision), consensusclaude-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).