component

2SK2857

Public Made by Adom

by adom

TECH PUBLIC MOSFETs, SOT-89-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componenttransistors-thyristors2sk2857factory-2.0.0extractor-text
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Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
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2sk2857-hero.glb 2sk2857: hero GLB from the etched model (keeps the MPN mark) · Ray 7d ago
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2SK2857

TECH PUBLIC · MOSFETs · SOT-89-3

2SK2857 from TECH PUBLIC, in a SOT-89-3. 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 G input Gate; threshold VGS(th) 1 V min to 2.3 V max at VDS=VGS, ID=250µA, absolute maximum VGS ±20 V.
2 D passive Drain (also the tab); VDS 60 V max, continuous ID 3.5 A, pulsed IDM 10 A.
3 S passive Source; connected to the body diode, with diode forward current IS of 3 A max and VSD of 1.2 V max.

Key specifications

Parameter Value
Manufacturer TECH PUBLIC
Package SOT-89-3
Category Transistors/Thyristors
Pins 3

CAD (KiCad official)

  • Symbol: 2SK2857
  • Footprint: Package_TO_SOT_SMD:SOT-89-3
  • 3D model: SOT-89-3 (KiCad packages3D, STEP)
  • 3D model files: 2sk2857-etched.step / 2sk2857-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 2sk2857.step / 2sk2857.glb are the bare package body.

Provenance

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

  • Datasheet: TECH PUBLIC datasheet (6 pp, sha256 60b10293a21ea152, retrieved 2026-10-18, 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