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Contents

README

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SMFJ5.0CA

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

SMFJ5.0CA 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 (SMFJ5.0CA, 5.0 V VRWM, 6.40-7.00 V breakdown at 10 mA, 9.2 V max clamping at 21.7 A Ipp); the datasheet gives no polarity for the bi-directional device, and for uni-directional parts pin 1 is the cathode (band side).
2 2 passive Bi-directional TVS terminal (SMFJ5.0CA, 5.0 V VRWM, 6.40-7.00 V breakdown at 10 mA, 9.2 V max clamping at 21.7 A Ipp); the datasheet gives no polarity for the bi-directional device, and for uni-directional parts pin 2 is the anode.

Key specifications

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

CAD (KiCad official)

  • Symbol: SMFJ5.0CA
  • Footprint: Diode_SMD:D_SOD-123F
  • 3D model: SOD-123 (KiCad packages3D, STEP)
  • 3D model files: smfj5-0ca-etched.step / smfj5-0ca-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); smfj5-0ca.step / smfj5-0ca.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 2026-10-09, 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