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SMFJ12CA

Public Made by Adom

by adom

FUXINSEMI ESD And Surge Protection (TVS/ESD), SOD-123. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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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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SMFJ12CA

FUXINSEMI · ESD And Surge Protection (TVS/ESD) · SOD-123

SMFJ12CA from FUXINSEMI, in a SOD-123. 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 Bi-directional TVS terminal (SMFJ12CA, VRWM 12 V, VBR 13.3-14.7 V at 1.0 mA, VC 19.9 V at 10.1 A); either terminal may connect to the line, no polarity, and the unidirectional cathode-band marking does not apply.
2 2 passive Bi-directional TVS terminal (SMFJ12CA, VRWM 12 V, VBR 13.3-14.7 V at 1.0 mA, VC 19.9 V at 10.1 A); either terminal may connect to the line or return, no polarity.

Key specifications

Parameter Value
Manufacturer FUXINSEMI
Package SOD-123
Category Circuit Protection
Pins 2

CAD (KiCad official)

  • Symbol: SMFJ12CA
  • Footprint: Diode_SMD:D_SOD-123F
  • 3D model: SOD-123 (KiCad packages3D, STEP)
  • 3D model files: smfj12ca-etched.step / smfj12ca-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); smfj12ca.step / smfj12ca.glb are the bare package body.

Provenance

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

  • Datasheet: FUXINSEMI datasheet (5 pp, sha256 eed1f33f3fcd93ef, 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