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UMW SS310A

Public Made by Adom

by adom

UMW Schottky Diodes, SMA(DO-214AC). 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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README.md Publish 0.1.0 · Ray 9d ago
umw-ss310a-etched.glb Publish 0.1.0 · Ray 9d ago
umw-ss310a-etched.step umw-ss310a: factory component page (tier=lcsc) · Ray 9d ago
umw-ss310a-hero.glb umw-ss310a: hero GLB from the etched model (keeps the MPN mark) · Ray 9d ago
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umw-ss310a.glb Publish 0.1.0 · Ray 9d ago
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UMW SS310A

UMW · Schottky Diodes · SMA(DO-214AC)

UMW SS310A from UMW, in a SMA(DO-214AC). 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 terminal, the end marked by the color band; the datasheet gives a maximum DC blocking voltage of 100 V for the SS310A.
2 A passive Anode terminal at the end opposite the color band; the datasheet gives a maximum average forward rectified current of 3 A for the part.

Key specifications

Parameter Value
Manufacturer UMW
Package SMA(DO-214AC)
Category Diodes
Pins 2

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Maximum repetitive peak reverse voltage VRRM 100 V 2
Maximum DC blocking voltage VDC 100 V 2
Maximum RMS voltage VRMS 71 V 2
Maximum Average Forward Rectified Current IF(AV) 3 A 2
Junction Temperature Range TJ -55 150 °C 2
Typical thermal resistance, junction to lead RθJL 17 °C/W 2
Typical thermal resistance, junction to ambient RθJA 55 °C/W 2

CAD (KiCad official)

  • Symbol: UMW SS310A
  • Footprint: Diode_SMD:D_SMA
  • 3D model: SMA(DO-214AC) (KiCad packages3D, STEP)
  • 3D model files: umw-ss310a-etched.step / umw-ss310a-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); umw-ss310a.step / umw-ss310a.glb are the bare package body.

Provenance

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

  • Datasheet: UMW datasheet (6 pp, sha256 1d5aee37d98864f5, retrieved 2026-10-17, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-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