component
2N5401S-RTK
Public Made by Adomby adom
KEC Semicon Bipolar (BJT), SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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2N5401S-RTK
KEC Semicon · Bipolar (BJT) · SOT-23
2N5401S-RTK from KEC Semicon, 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 | EMITTER | passive | Emitter terminal of the PNP transistor; the emitter-base voltage is limited to -5 V (VEBO) and the collector current to -600 mA (IC). |
| 2 | BASE | passive | Base terminal of the PNP transistor; base current is limited to -100 mA (IB) and the emitter-base voltage to -5 V (VEBO). |
| 3 | COLLECTOR | passive | Collector terminal of the PNP transistor; rated for -160 V collector-base (VCBO), -150 V collector-emitter (VCEO) and -600 mA collector current (IC), with 350 mW collector power dissipation when the package is mounted on 99.5% alumina 10x8x0.6 mm. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | KEC Semicon |
| Package | SOT-23 |
| Category | Transistors/Thyristors |
| Pins | 3 |
CAD (KiCad official)
- Symbol:
2N5401S-RTK - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
2n5401s-rtk-etched.step/2n5401s-rtk-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);2n5401s-rtk.step/2n5401s-rtk.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: KEC Semicon datasheet (2 pp, sha256
7a58fb91e7bb5561, retrieved 2026-10-09, 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).
# 2N5401S-RTK
**KEC Semicon** · Bipolar (BJT) · SOT-23
2N5401S-RTK from KEC Semicon, 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 | EMITTER | passive | Emitter terminal of the PNP transistor; the emitter-base voltage is limited to -5 V (VEBO) and the collector current to -600 mA (IC). |
| 2 | BASE | passive | Base terminal of the PNP transistor; base current is limited to -100 mA (IB) and the emitter-base voltage to -5 V (VEBO). |
| 3 | COLLECTOR | passive | Collector terminal of the PNP transistor; rated for -160 V collector-base (VCBO), -150 V collector-emitter (VCEO) and -600 mA collector current (IC), with 350 mW collector power dissipation when the package is mounted on 99.5% alumina 10x8x0.6 mm. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | KEC Semicon |
| Package | SOT-23 |
| Category | Transistors/Thyristors |
| Pins | 3 |
## CAD (KiCad official)
- Symbol: `2N5401S-RTK`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `2n5401s-rtk-etched.step` / `2n5401s-rtk-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `2n5401s-rtk.step` / `2n5401s-rtk.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [KEC Semicon datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586188566178746368) (2 pp, sha256 `7a58fb91e7bb5561`, retrieved 2026-10-09, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-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).
[Datasheet PDF](docs/2n5401s-rtk-datasheet.pdf)