component
MM5Z5V1ST1G
Public Made by Adomby adom
onsemi 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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Contents
README
markdownMM5Z5V1ST1G
onsemi · Zener Diodes · SOD-523
MM5Z5V1ST1G from onsemi, 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 of the Zener diode, marked by the polarity band on the SOD-523 package (Style 1, Pin 1). |
| 2 | Anode | passive | Anode of the Zener diode (Style 1, Pin 2), which is the terminal opposite the cathode polarity band. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| 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 |
|---|---|---|---|---|---|---|---|
| Reverse Zener Voltage | VZ | 4.98 | 5.2 | V | @ IZT = 5.0 mA | 2 | |
| Maximum Zener Impedance | ZZT | 60 | Ω | @ IZT = 5.0 mA | 2 | ||
| Maximum Zener Impedance | ZZK | 500 | Ω | @ IZK = 1.0 mA | 2 | ||
| Reverse Leakage Current | IR | 2 | A | @ VR = 2.0 V | 2 | ||
| Maximum Temperature Coefficient of VZ (dVZ/dt) | dVZ/dt | -2.7 | 1.2 | mV/k | @ IZT1 = 5 mA | 2 | |
| Max. Capacitance | C | 225 | pF | @ VR = 0 and f = 1 MHz | 2 | ||
| Forward Voltage | VF | 0.9 | V | @ IF = 10 mA (for all types) | 2 | ||
| Total Device Dissipation FR-4 Board | PD | 500 | mW | @ TA = 25°C (Note 1) | 1 | ||
| Derate above 25°C | PD | 4 | mW/°C | Derate above 25°C (Note 1) | 1 | ||
| Thermal Resistance from Junction-to-Ambient | RJA | 250 | °C/W | Note 1: FR-4 PCB, single-sided copper, mounting pad 1 cm2 | 1 | ||
| Operating Junction and Storage Temperature Range | TJ, Tstg | -65 | 150 | °C | 1 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | tin | LEAD FINISH: 100% Matte Sn (Tin) MOUNTING POSITION: Any | 1 |
CAD (KiCad official)
- Symbol:
MM5Z5V1ST1G - Footprint:
Diode_SMD:D_SOD-523 - 3D model: SOD-523 (KiCad packages3D, STEP)
- 3D model files:
mm5z5v1st1g-etched.step/mm5z5v1st1g-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);mm5z5v1st1g.step/mm5z5v1st1g.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: onsemi datasheet (4 pp, sha256
bdc50e5aee58a58b, retrieved 2026-10-21, tier: manufacturer) - 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).