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MM3Z18-MS

Public Made by Adom

by adom

MSKSEMI Zener Diodes, SOD-323. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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MM3Z18-MS

MSKSEMI · Zener Diodes · SOD-323

MM3Z18-MS from MSKSEMI, in a SOD-323. 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 CATHODE passive Cathode terminal of the zener diode; the datasheet gives no pin-level electrical limits beyond the device ratings (Ptot 200 mW, Tj/Tstg -55 to +150 °C).
2 ANODE passive Anode terminal of the zener diode; the datasheet gives no pin-level electrical limits beyond the device ratings (Ptot 200 mW, Tj/Tstg -55 to +150 °C).

Key specifications

Parameter Value
Manufacturer MSKSEMI
Package SOD-323
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
Dynamic impedance ZZT 45 Ω at IZT = 5 mA 3
Reverse current IR 0.1 μA at VR = 13 V 3
Total power dissipation Ptot 200 mW 2
Operating and storage temperature range Tj, Tstg -55 150 °C 2
Zener voltage tolerance (approximate, family-level) -5 5 % 2
Thermal resistance, junction to ambient RθJA 417 °C/W junction to ambient; P.C.B. mounted with 2.0" x 2.0" copper area pads 2

CAD (KiCad official)

  • Symbol: MM3Z18-MS
  • Footprint: Diode_SMD:D_SOD-323
  • 3D model: SOD-323 (KiCad packages3D, STEP)
  • 3D model files: mm3z18-ms-etched.step / mm3z18-ms-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mm3z18-ms.step / mm3z18-ms.glb are the bare package body.

Provenance

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

  • Datasheet: MSKSEMI datasheet (5 pp, sha256 ad4064742873770b, retrieved 2026-10-22, 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