component

SMF90A

Public Made by Adom

by adom

DOWO 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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SMF90A

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

SMF90A from DOWO, 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, the end marked by the color band; connect to the protected line, which must stay below the 90 V working peak reverse voltage (VRWM) for unidirectional SMF90A (breakdown 100-111 V at 1 mA).
2 A passive Anode, the end opposite the color band; connect to ground/return, with peak pulse current up to 1.37 A at 146 V maximum clamping voltage.

Key specifications

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

CAD (KiCad official)

  • Symbol: SMF90A
  • Footprint: Diode_SMD:D_SOD-123F
  • 3D model: SOD-123 (KiCad packages3D, STEP)
  • 3D model files: smf90a-etched.step / smf90a-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); smf90a.step / smf90a.glb are the bare package body.

Provenance

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

  • Datasheet: DOWO datasheet (3 pp, sha256 fe54c475efed0169, 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