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MM5Z18

Public Made by Adom

by adom

HUXN Zener Diodes, SOD-523. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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MM5Z18

HUXN · Zener Diodes · SOD-523

MM5Z18 from HUXN, in a SOD-523. 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 MM5Z18 silicon planar Zener diode, with a nominal Zener voltage of 18 V (VZT min 16.8 V, max 19.1 V at IZT 2 mA) and a 200 mW steady-state power rating.
2 Anode passive Anode terminal of the MM5Z18 silicon planar Zener diode, with a total device dissipation rating of 200 mW and a junction and storage temperature range of -65 to +150 °C.

Key specifications

Parameter Value
Manufacturer HUXN
Package SOD-523
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
Zener voltage VZT 16.8 18 19.1 V at IZT = 2 mA; tested with pulses tp = 20 ms 2
Forward voltage VF 0.9 V at IF = 10 mA 1
Total device dissipation Ptot 200 mW Steady state 1
Junction and storage temperature range Tj, Tstg -65 150 °C 1

CAD (KiCad official)

  • Symbol: MM5Z18
  • Footprint: Diode_SMD:D_SOD-523
  • 3D model: SOD-523 (KiCad packages3D, STEP)
  • 3D model files: mm5z18-etched.step / mm5z18-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mm5z18.step / mm5z18.glb are the bare package body.

Provenance

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

  • Datasheet: HUXN datasheet (4 pp, sha256 0888b23a6189acff, retrieved 2026-10-21, 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