component

US1D

Public Made by Adom

by adom

MDD Microdiode Semiconductor Fast Recovery / High Efficiency Diodes, SMA. 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
Name Last commit message Last updated
docs Publish 0.1.0 · Ray 12d ago
viewers us1d: viewers · Ray 12d ago
package.json Publish 0.1.0 · Ray 12d ago
page.json Set visibility: public · Ray 12d ago
README.md Publish 0.1.0 · Ray 12d ago
us1d-etched.glb Publish 0.1.0 · Ray 12d ago
us1d-etched.step us1d: factory component page (tier=lcsc) · Ray 12d ago
us1d-hero.glb us1d: hero GLB from the etched model (keeps the MPN mark) · Ray 12d ago
us1d-hero.overlay.json Publish 0.1.0 · Ray 12d ago
us1d.glb Publish 0.1.0 · Ray 12d ago
us1d.kicad_mod Publish 0.1.0 · Ray 12d ago
us1d.kicad_sym Publish 0.1.0 · Ray 12d ago
us1d.lbr Publish 0.1.0 · Ray 12d ago
us1d.step Publish 0.1.0 · Ray 12d ago

US1D

MDD Microdiode Semiconductor · Fast Recovery / High Efficiency Diodes · SMA

US1D from MDD Microdiode Semiconductor, in a SMA. 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 with the polarity band on the body; the 200 V part (US1D) blocks up to VRRM/VDC = 200 V in reverse and passes 1.0 A average forward current.
2 A passive Anode, the end opposite the polarity band; carries forward current up to 1.0 A average (30 A peak surge for 8.3 ms) with VF of 1.0 V at 1.0 A.

Key specifications

Parameter Value
Manufacturer MDD Microdiode Semiconductor
Package SMA
Category Diodes
Pins 2

CAD (KiCad official)

  • Symbol: US1D
  • Footprint: Diode_SMD:D_SMA
  • 3D model: SMA (KiCad packages3D, STEP)
  • 3D model files: us1d-etched.step / us1d-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); us1d.step / us1d.glb are the bare package body.

Provenance

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

  • Datasheet: MDD Microdiode Semiconductor datasheet (3 pp, sha256 697dd8d49fb65a82, retrieved 2026-10-12, 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