component

SMFJ30A

Public Made by Adom

by adom

TECH PUBLIC 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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smfj30a-etched.glb smfj30a: factory component page (tier=lcsc) · Ray 3h ago
smfj30a-etched.step smfj30a: factory component page (tier=lcsc) · Ray 3h ago
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SMFJ30A

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

SMFJ30A from TECH PUBLIC, 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 K passive Cathode (marked by the band on the package) of the unipolar TVS, connected to the protected line, with 30 V reverse stand-off, 33.3 to 36.8 V breakdown at 1 mA and 48.4 V maximum clamping at 4.1 A.
2 A passive Anode of the unipolar TVS, normally connected to ground/return, with 200 W peak pulse power (10/1000 µs) and 1000 W (8/20 µs).

Key specifications

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

CAD (KiCad official)

  • Symbol: SMFJ30A
  • Footprint: Diode_SMD:D_SOD-123F
  • 3D model: SOD-123 (KiCad packages3D, STEP)
  • 3D model files: smfj30a-etched.step / smfj30a-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); smfj30a.step / smfj30a.glb are the bare package body.

Provenance

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

  • Datasheet: TECH PUBLIC datasheet (4 pp, sha256 cff1d8a3b505f6ee, 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