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Contents

README

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MM1W39

Shandong Jingdao Microelectronics · Zener Diodes · SOD-123

MM1W39 from Shandong Jingdao Microelectronics, in a SOD-123. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 K passive Cathode terminal of the zener diode. Marked as pin 1 on the SOD-123 package (typically the banded end).
2 A passive Anode terminal of the zener diode. Marked as pin 2 on the SOD-123 package.

Key specifications

Parameter Value
Manufacturer Shandong Jingdao Microelectronics
Package SOD-123
Category Diodes
Pins 2

Ordering variants

Same part, different packaging or reel option.

  • MM1W39

CAD (KiCad official)

  • Symbol: MM1W39
  • Footprint: Diode_SMD:D_SOD-123
  • 3D model: SOD-123 (KiCad packages3D, STEP)
  • 3D model files: mm1w39-etched.step / mm1w39-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mm1w39.step / mm1w39.glb are the bare package body.

Provenance

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

  • Datasheet: Shandong Jingdao Microelectronics datasheet (3 pp, sha256 013135782e49243c, retrieved 2026-08-17, tier: lcsc)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF