component
2SAR542PT100
Public Made by Adomby adom
ROHM Semicon 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
markdown2SAR542PT100
ROHM Semicon · Bipolar (BJT) · SOT-89
2SAR542PT100 from ROHM Semicon, 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; the datasheet gives VEBO of -6V, and VCE(sat) of -0.4V max at IC/IB = -2A/-100mA. |
| 2 | Collector | passive | Collector terminal (also the tab on the SOT-89 body); the datasheet gives VCBO of -30V, VCEO of -30V, IC of -5.0A DC and ICP of -10A pulsed. |
| 3 | Emitter | passive | Emitter terminal of the PNP transistor; the datasheet gives VEBO of -6V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | ROHM Semicon |
| 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 | -30 | V | 1 | |||
| Collector-emitter voltage | VCEO | -30 | V | 1 | |||
| Emitter-base voltage | VEBO | -6 | V | 1 | |||
| Collector current DC | IC | -5 | A | 1 | |||
| Collector current pulsed | ICP | -10 | A | Pw=10ms, single pulse (*1) | 1 | ||
| Power dissipation | PD | 0.5 | W | Each terminal mounted on a reference land (*2) | 1 | ||
| Power dissipation | PD | 2 | W | Mounted on a ceramic board (40x40x0.7mm) (*3) | 1 | ||
| Junction temperature | Tj | 150 | °C | 1 | |||
| Range of storage temperature | Tstg | -55 | 150 | °C | 1 | ||
| Collector-emitter breakdown voltage | BVCEO | -30 | V | IC = -1mA | 2 | ||
| Emitter-base breakdown voltage | BVEBO | -6 | V | IE = -100mA | 2 | ||
| Collector-base breakdown voltage | BVCBO | -30 | V | IC = -100mA | 2 | ||
| Emitter cut-off current | IEBO | -1 | mA | VEB = -4V | 2 | ||
| Collector cut-off current | ICBO | -1 | VCB = -30V | 2 | |||
| DC current gain | hFE | 200 | 500 | - | VCE = -2V, IC = -500mA | 2 | |
| Collector-emitter saturation voltage | VCE(sat) | -0.2 | -0.4 | V | IC = -2A, IB = -100mA, pulsed (*1) | 2 |
CAD (KiCad official)
- Symbol:
2SAR542PT100 - Footprint:
Package_TO_SOT_SMD:SOT-89-3 - 3D model: SOT-89 (KiCad packages3D, STEP)
- 3D model files:
2sar542pt100-etched.step/2sar542pt100-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);2sar542pt100.step/2sar542pt100.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: ROHM Semicon datasheet (7 pp, sha256
e516360c04019527, 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).