component
2SB1189
Public Made by Adomby adom
ALJ 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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README
markdown2SB1189
ALJ · Bipolar (BJT) · SOT-89
2SB1189 from ALJ, 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 | Base | input | Base terminal of the PNP transistor, with emitter-base breakdown voltage V(BR)EBO of -5 V and emitter-base voltage VEBO limited to -5 V. |
| 2 | Collector | passive | Collector terminal, rated for a collector-base voltage VCBO of -80 V, collector-emitter voltage VCEO of -80 V, and collector current IC of -0.7 A. |
| 3 | Emitter | passive | Emitter terminal of the PNP transistor, with the emitter-base limits of VEBO -5 V given in the maximum ratings. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | ALJ |
| 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-emitter breakdown voltage | V(BR)CEO | -80 | V | IC = -2mA, IB = 0 | 1 | ||
| Collector-base breakdown voltage | V(BR)CBO | -80 | V | IC = -50µA, IE = 0 | 1 | ||
| Emitter-base breakdown voltage | V(BR)EBO | -5 | V | IE = -50µA, IC = 0 | 1 | ||
| Collector cut-off current | ICBO | -0.5 | µA | VCB = -50V, IE = 0 | 1 | ||
| Emitter cut-off current | IEBO | -0.5 | µA | VEB = -4V, IC = 0 | 1 | ||
| DC current gain hFE(1) | hFE(1) | 82 | VCE = -5V, IC = -1mA | 1 | |||
| DC current gain hFE(2) | hFE(2) | 82 | 390 | VCE = -3V, IC = -100mA | 1 | ||
| Collector-emitter saturation voltage | VCE(sat) | -0.4 | V | IC = -500mA, IB = -50mA | 1 | ||
| Transition frequency | fT | 100 | MHz | VCE = -10V, IC = -50mA, f = 100MHz | 1 | ||
| Output capacitance | Cob | 20 | pF | VCB = -10V, IE = 0, f = 1MHz | 1 | ||
| Collector base voltage | VCBO | -80 | V | 1 | |||
| Collector emitter voltage | VCEO | -80 | V | 1 | |||
| Emitter base voltage | VEBO | -5 | V | 1 | |||
| Collector current | IC | -0.7 | A | 1 | |||
| Collector power dissipation | PC | 0.5 | mW | 1 | |||
| Junction temperature | Tj | 150 | °C | 1 | |||
| Storage temperature | Tstg | -55 | 150 | °C | 1 |
CAD (KiCad official)
- Symbol:
2SB1189 - Footprint:
Package_TO_SOT_SMD:SOT-89-3 - 3D model: SOT-89 (KiCad packages3D, STEP)
- 3D model files:
2sb1189-etched.step/2sb1189-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);2sb1189.step/2sb1189.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: ALJ datasheet (2 pp, sha256
465a42bae06fcc9d, retrieved 2026-10-18, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-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).