component

BSS139

Public Made by Adom

by adom

TECH PUBLIC MOSFETs, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Generated by kicad-footprint-generator · KiCad file format 20260206
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docs Publish 0.1.0 · Ray 20d ago
viewers bss139: viewers · Ray 20d ago
bss139-etched.glb bss139: factory component page (tier=lcsc) · Ray 20d ago
bss139-etched.step bss139: factory component page (tier=lcsc) · Ray 20d ago
bss139-hero.glb bss139: hero GLB from the etched model (keeps the MPN mark) · Ray 20d ago
bss139-hero.overlay.json Publish 0.1.0 · Ray 20d ago
bss139.glb Publish 0.1.0 · Ray 20d ago
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bss139.kicad_sym Publish 0.1.0 · Ray 20d ago
bss139.lbr Publish 0.1.0 · Ray 20d ago
bss139.step Publish 0.1.0 · Ray 20d ago
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BSS139

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.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bss139.step / bss139.glb are 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, primary claude-sonnet-5-5 (vision), consensus claude-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).

Datasheet PDF