component
MM1Z5236B
Public Made by Adomby adom
ST Semtech Zener Diodes, SOD-123. 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
markdownMM1Z5236B
ST Semtech · Zener Diodes · SOD-123
MM1Z5236B from ST Semtech, in a SOD-123. 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 silicon planar Zener diode, shown as pin 1 in the SOD-123 PINNING table and outline drawing. |
| 2 | Anode | passive | Anode terminal of the silicon planar Zener diode, shown as pin 2 in the SOD-123 top view and PINNING table. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | ST Semtech |
| Package | SOD-123 |
| 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, pulsed) | VZT | 7.13 | 7.88 | V | at IZT = 20 mA, pulsed 20 ms | 2 | |
| Nominal zener voltage | Vznom | 7.5 | V | 2 | |||
| Dynamic impedance (zener test current) | ZZT | 6 | Ω | at IZT = 20 mA | 2 | ||
| Dynamic impedance (knee current) | ZZK | 500 | Ω | at IZK = 0.25 mA | 2 | ||
| Reverse current | IR | 3 | µA | at VR = 6 V | 2 | ||
| Forward voltage | VF | 0.9 | V | at IF = 10 mA | 1 | ||
| Zener voltage tolerance | -5 | 5 | % | approximately ±5% (family tolerance per Features) | 1 | ||
| Power dissipation (total) | Ptot | 500 | mW | Ta = 25℃ | 1 | ||
| Junction temperature | Tj | 150 | ℃ | 1 | |||
| Storage temperature range | TStg | -55 | 150 | ℃ | 1 | ||
| Thermal resistance junction to ambient air | RθJA | 350 | ℃/W | 1 |
CAD (KiCad official)
- Symbol:
MM1Z5236B - Footprint:
Diode_SMD:D_SOD-123F - 3D model: SOD-123 (KiCad packages3D, STEP)
- 3D model files:
mm1z5236b-etched.step/mm1z5236b-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);mm1z5236b.step/mm1z5236b.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: ST Semtech datasheet (4 pp, sha256
a80b873003c5c24a, retrieved 2026-10-20, 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).