component
PMMT591A
Public Made by Adomby adom
Nexperia Bipolar (BJT), SOT-23. 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
markdownPMMT591A
Nexperia · Bipolar (BJT) · SOT-23
PMMT591A from Nexperia, in a SOT-23. 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 BISS transistor; peak base current is limited to −1 A (IBM) in the limiting values. |
| 2 | emitter | passive | Emitter terminal of the PNP BISS transistor; emitter-base voltage is limited to −5 V (VEBO) in the limiting values. |
| 3 | collector | passive | Collector terminal of the PNP BISS transistor; limited to −40 V collector-emitter (VCEO), −1 A DC collector current (IC) and −2 A peak collector current (ICM). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Nexperia |
| Package | SOT-23 |
| 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 | -40 | V | open emitter | 3 | ||
| Collector-emitter voltage | VCEO | -40 | V | open base | 3 | ||
| Emitter-base voltage | VEBO | -5 | V | open collector | 3 | ||
| Collector current (DC) | IC | -1 | A | 3 | |||
| Peak collector current | ICM | -2 | A | 3 | |||
| Peak base current | IBM | -1 | A | 3 | |||
| Total power dissipation | Ptot | 250 | mW | Tamb ≤ 25 °C; note 1 | 3 | ||
| Storage temperature | Tstg | -65 | 150 | °C | 3 | ||
| Junction temperature | Tj | 150 | °C | 3 | |||
| Operating ambient temperature | Tamb | -65 | 150 | °C | 3 | ||
| Thermal resistance from junction to ambient | Rth(j-a) | 500 | K/W | note 1 | 4 | ||
| Collector cut-off current | ICBO | -100 | nA | IE = 0; VCB = −30 V | 4 | ||
| Emitter cut-off current | IEBO | -100 | nA | IC = 0; VEB = −5 V | 4 | ||
| DC current gain | hFE | 300 | VCE = −5 V; IC = −1 mA; note 1 | 4 | |||
| DC current gain | hFE | 300 | 800 | VCE = −5 V; IC = −100 mA; note 1 | 4 | ||
| DC current gain | hFE | 250 | VCE = −5 V; IC = −500 mA; note 1 | 4 | |||
| DC current gain | hFE | 160 | VCE = −5 V; IC = −1 A; note 1 | 4 | |||
| Collector-emitter saturation voltage | VCEsat | -200 | mV | IC = −100 mA; IB = −1 mA; note 1 | 4 | ||
| Collector-emitter saturation voltage | VCEsat | -350 | mV | IC = −500 mA; IB = −20 mA; note 1 | 4 | ||
| Collector-emitter saturation voltage | VCEsat | -500 | mV | IC = −1 A; IB = −100 mA; note 1 | 4 | ||
| Base-emitter saturation voltage | VBEsat | -1.1 | V | IC = −1 A; IB = −50 mA; note 1 | 4 | ||
| Base-emitter voltage | VBE | -1 | V | VCE = −5 V; IC = −1 A; note 1 | 4 | ||
| Collector capacitance | Cc | 12 | pF | IE = Ie = 0; VCB = −10 V; f = 1 MHz | 4 | ||
| Transition frequency | fT | 150 | MHz | IC = −50 mA; VCE = −10 V; f = 100 MHz | 4 |
CAD (KiCad official)
- Symbol:
PMMT591A - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
pmmt591a-etched.step/pmmt591a-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);pmmt591a.step/pmmt591a.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Nexperia datasheet (8 pp, sha256
1e39cfbfab10be43, retrieved 2026-10-17, tier: manufacturer) - 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).