component
MM5Z18
Public Made by Adomby adom
HUXN Zener Diodes, SOD-523. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownMM5Z18
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.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);mm5z18.step/mm5z18.glbare 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, primaryclaude-haiku-5-5(text), consensusclaude-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).