component
2N5401 4000
Public Made by Adomby adom
ST(Semtech) Bipolar Transistors - BJT, TO-92-3. 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
markdown2N5401 4000
ST(Semtech) · Bipolar Transistors - BJT · TO-92-3
2N5401 4000 from ST(Semtech), in a TO-92-3. 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 | Emitter | passive | Emitter of the PNP transistor; -VEBO max 5 V. |
| 2 | Base | passive | Base of the PNP transistor; -VEBO max 5 V relative to emitter. |
| 3 | Collector | passive | Collector of the PNP transistor; -VCBO 160 V, -VCEO 150 V and -IC 600 mA maximum for 2N5401. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | ST(Semtech) |
| Package | TO-92-3 |
| Category | Triode/MOS Tube/Transistor |
| 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 | hFE | 50 | -VCE = 5 V, -IC = 1 mA | 2 | |||
| DC Current Gain | hFE | 60 | 240 | -VCE = 5 V, -IC = 10 mA | 2 | ||
| Collector Base Cutoff Current | -ICBO | 50 | nA | -VCB = 120 V | 2 | ||
| Emitter Base Cutoff Current | -IEBO | 50 | nA | -VEB = 3 V | 2 | ||
| Collector Base Breakdown Voltage | -V(BR)CBO | 160 | V | -IC = 100 µA | 2 | ||
| Collector Emitter Breakdown Voltage | -V(BR)CEO | 150 | V | -IC = 1 mA | 2 | ||
| Emitter Base Breakdown Voltage | -V(BR)EBO | 5 | V | -IE = 10 µA | 2 | ||
| Collector Emitter Saturation Voltage | -VCE(sat) | 0.2 | V | -IC = 10 mA, -IB = 1 mA | 2 | ||
| Collector Emitter Saturation Voltage | -VCE(sat) | 0.5 | V | -IC = 50 mA, -IB = 5 mA | 2 | ||
| Base Emitter Saturation Voltage | -VBE(sat) | 1 | V | -IC = 10 mA, -IB = 1 mA | 2 | ||
| Gain Bandwidth Product | fT | 100 | 400 | MHz | -VCE = 10 V, -IC = 10 mA, f = 100 MHz | 2 | |
| Collector Output Capacitance | Cob | 6 | pF | -VCB = 10 V, f = 1 MHz | 2 | ||
| Collector Base Voltage | -VCBO | 160 | V | Ta = 25 °C | 1 | ||
| Collector Emitter Voltage | -VCEO | 150 | V | Ta = 25 °C | 1 | ||
| Emitter Base Voltage | -VEBO | 5 | V | Ta = 25 °C | 1 | ||
| Collector Current | -IC | 600 | mA | Ta = 25 °C | 1 | ||
| Power Dissipation | Ptot | 625 | mW | Ta = 25 °C | 1 | ||
| Junction Temperature | Tj | 150 | °C | Ta = 25 °C | 1 | ||
| Storage Temperature Range | Tstg | -55 | 150 | °C | Ta = 25 °C | 1 |
CAD (KiCad official)
- Symbol:
2N5401 4000 - Footprint:
Package_TO_SOT_THT:TO-92_Inline - 3D model: TO-92-3 (KiCad packages3D, STEP)
- 3D model files:
2n5401-4000-etched.step/2n5401-4000-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);2n5401-4000.step/2n5401-4000.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: ST(Semtech) datasheet (3 pp, sha256
ef8b35529f0c5b99, retrieved 2026-10-23, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-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).