component
BSS139
Public Made by Adomby adom
TECH PUBLIC MOSFETs, 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
markdownBSS139
TECH PUBLIC · MOSFETs · SOT-23
BSS139 from TECH PUBLIC, 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 | G | input | Gate; controls the channel, rated ±20 V maximum gate-source voltage (VGS(TH) 0.8 V min, 1.5 V max at 250 µA) and has ESD protection. |
| 2 | S | passive | Source terminal of the N-channel MOSFET; continuous drain current is rated 360 mA and the body diode runs from source to drain. |
| 3 | D | passive | Drain; rated 50 V maximum drain-source voltage, 360 mA continuous and 1500 mA pulsed drain current. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | TECH PUBLIC |
| Package | SOT-23 |
| Category | Transistors/Thyristors |
| Pins | 3 |
CAD (KiCad official)
- Symbol:
BSS139 - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
bss139-etched.step/bss139-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bss139.step/bss139.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: TECH PUBLIC datasheet (5 pp, sha256
ba8e4a56b63465aa, retrieved 2026-10-09, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(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).