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Contents

README

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BSS123LT1G

onsemi · MOSFETs · SOT-23

BSS123LT1G from onsemi, in a SOT-23. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 GATE input Gate control input terminal rated for ±20 Vdc continuous or ±40 Vpk non-repetitive gate-source voltage to modulate drain-source channel conduction.
2 SOURCE power_in Source terminal providing the reference point for gate-source voltage and drain current definitions, serving as the return path typically connected to ground.
3 DRAIN output Drain terminal rated for maximum 100 Vdc drain-source voltage and 170 mA continuous drain current with RDS(on) of 6 Ω when VGS exceeds the threshold of 1.6 to 2.6 Vdc.

Key specifications

Parameter Value
Manufacturer onsemi
Package SOT-23
Category Transistors/Thyristors
Pins 3

CAD (KiCad official)

  • Symbol: BSS123LT1G
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: bss123lt1g-etched.step / bss123lt1g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bss123lt1g.step / bss123lt1g.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: onsemi datasheet (5 pp, sha256 0992054b5b324f40, retrieved 2026-09-17, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.2, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-4-6 (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