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PESD0402MS12

Public Made by Adom

by adom

TWGMC ESD And Surge Protection (TVS/ESD), 0402. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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pesd0402ms12-etched.glb pesd0402ms12: etched from the flattened plain STEP (service-occt 1.6.0, from the plain STEP) · Ray 17d ago
pesd0402ms12-etched.step pesd0402ms12: etched from the flattened plain STEP (service-occt 1.6.0, from the plain STEP) · Ray 17d ago
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pesd0402ms12.lbr Publish 0.1.0 · Ray 24d ago
pesd0402ms12.step plain STEP: one free product with face colours (generated model was nested; tscircuit read it white) · Ray 17d ago
README.md Publish 0.1.0 · Ray 24d ago

PESD0402MS12

TWGMC · ESD And Surge Protection (TVS/ESD) · 0402

PESD0402MS12 from TWGMC, in a 0402. 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 1 passive One terminal of the bi-directional single-line ESD suppressor, connected to the protected signal line; rated for 12 V maximum continuous operating voltage, with ±8 kV contact and ±15 kV air IEC 61000-4-2 ESD.
2 2 passive Second terminal of the bi-directional single-line ESD suppressor, connected to ground or the return side; the device is symmetric, with 0.05 pF typical capacitance and less than 100 nA leakage at 12 V.

Key specifications

Parameter Value
Manufacturer TWGMC
Package 0402
Category Circuit Protection
Pins 2

CAD (KiCad official)

  • Symbol: PESD0402MS12
  • Footprint: Diode_SMD:D_0402_1005Metric
  • 3D model: 0402, generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 0.4 mm nominal 0402 height). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions are nominal, not the manufacturer's CAD (STEP)
  • 3D model files: pesd0402ms12-etched.step / pesd0402ms12-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); pesd0402ms12.step / pesd0402ms12.glb are the bare package body.

Provenance

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

  • Datasheet: TWGMC datasheet (3 pp, sha256 2e7c749f17bcf8b8, retrieved 2026-10-09, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+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