component
2SC2881U
Public Made by Adomby adom
CBI 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
markdown2SC2881U
CBI · Bipolar (BJT) · SOT-89
2SC2881U from CBI, 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; limits are VEBO 5 V, IB 160 mA max, and VBE(on) 1 V max at VCE = 5 V, IC = 500 mA. |
| 2 | C | passive | Collector (also the tab); limits are VCBO 120 V, VCEO 120 V, IC 800 mA, and PC 0.5 W (1 W on ceramic board). |
| 3 | E | passive | Emitter; the datasheet gives a V(BR)EBO of 5 V min at IE = 1 mA. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | CBI |
| 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 |
|---|---|---|---|---|---|---|---|
| DC current gain, Group O | hFE | 80 | 160 | at VCE = 5 V, IC = 100 mA | 1 | ||
| DC current gain, Group Y | hFE | 120 | 240 | at VCE = 5 V, IC = 100 mA | 1 | ||
| Collector Base Cutoff Current | ICBO | 100 | nA | at VCB = 120 V | 1 | ||
| Emitter Base Cutoff Current | IEBO | 100 | nA | at VEB = 5 V | 1 | ||
| Collector Emitter Breakdown Voltage | V(BR)CEO | 120 | V | at IC = 1 mA | 1 | ||
| Emitter Base Breakdown Voltage | V(BR)EBO | 5 | V | at IE = 1 mA | 1 | ||
| Collector Emitter Saturation Voltage | VCE(sat) | 1 | V | at IC = 500 mA, IB = 50 mA | 1 | ||
| Base Emitter on Voltage | VBE(on) | 1 | V | at VCE = 5 V, IC = 500 mA | 1 | ||
| Collector Output Capacitance | Cob | 30 | pF | at VCB = 10 V, f = 1 MHz | 1 | ||
| Collector Base Voltage | VCBO | 120 | V | 1 | |||
| Collector Emitter Voltage | VCEO | 120 | V | 1 | |||
| Emitter Base Voltage | VEBO | 5 | V | 1 | |||
| Collector Current | IC | 800 | mA | 1 | |||
| Base Current | IB | 160 | mA | 1 | |||
| Collector Power Dissipation (value 0.5) | PC | 0.5 | W | 1 | |||
| Collector Power Dissipation (value 1) | PC | 1 | W | Mounted on ceramic board (250 mm2 X 0.8 mm) | 1 | ||
| Junction Temperature | Tj | 150 | °C | 1 | |||
| Storage Temperature Range | Tstg | -55 | 150 | °C | 1 |
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 160 mA Collector Power Dissipation PC | 1 |
CAD (KiCad official)
- Symbol:
2SC2881U - Footprint:
Package_TO_SOT_SMD:SOT-89-3 - 3D model: SOT-89 (KiCad packages3D, STEP)
- 3D model files:
2sc2881u-etched.step/2sc2881u-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);2sc2881u.step/2sc2881u.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: CBI datasheet (3 pp, sha256
e90c573fe5e0ddc4, 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).