component
MM3Z22VST1G
Public Made by Adomby adom
onsemi Zener Diodes, SOD-323. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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MM3Z22VST1G
onsemi · Zener Diodes · SOD-323
MM3Z22VST1G from onsemi, 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, identified by the polarity band on the SOD-323 package. |
| 2 | Anode | passive | Anode terminal of the Zener diode in the SOD-323 package. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| 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 |
|---|---|---|---|---|---|---|---|
| Reverse Zener Voltage | VZ | 21.54 | 22.47 | V | IZT = 5.0 mA | 3 | |
| Maximum Zener Impedance | ZZT | 100 | Ω | IZ = IZT | 3 | ||
| Maximum Zener Impedance | ZZK | 55 | Ω | IZ = 0.5 mA | 3 | ||
| Reverse Leakage Current | IR | 0.05 | μA | VR = 15.4 V | 3 | ||
| Maximum Temperature Coefficient of VZ | dVZ/dt | 16.4 | 20 | mV/k | IZT1 = 5 mA | 3 | |
| Max. Capacitance | C | 85 | pF | VR = 0, f = 1 MHz | 3 | ||
| Forward Voltage | VF | 0.9 | V | IF = 10 mA | 2 | ||
| Total Device Dissipation FR-4 Board | PD | 300 | mW | TA = 25°C (Note 1) | 2 | ||
| Derate above 25°C | PD | 2.4 | mW/°C | Derate above 25°C | 2 | ||
| Thermal Resistance from Junction-to-Ambient | RJA | 416 | °C/W | 2 | |||
| Junction and Storage Temperature Range | TJ, Tstg | -65 | 150 | °C | 2 |
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 | LEADS: Plated with Pb−Sn or Sn only (Pb−Free) POLARITY: Cathode indicated by polarity band | 1 |
CAD (KiCad official)
- Symbol:
MM3Z22VST1G - Footprint:
Diode_SMD:D_SOD-323 - 3D model: SOD-323 (KiCad packages3D, STEP)
- 3D model files:
mm3z22vst1g-etched.step/mm3z22vst1g-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);mm3z22vst1g.step/mm3z22vst1g.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: onsemi datasheet (6 pp, sha256
6327225eeeaa38aa, retrieved 2026-10-27, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-sonnet-5-5(agreed (audit)), 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).
# MM3Z22VST1G
**onsemi** · Zener Diodes · SOD-323
MM3Z22VST1G from onsemi, 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, identified by the polarity band on the SOD-323 package. |
| 2 | Anode | passive | Anode terminal of the Zener diode in the SOD-323 package. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| 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 |
|---|---|---|---|---|---|---|---|
| Reverse Zener Voltage | VZ | 21.54 | | 22.47 | V | IZT = 5.0 mA | 3 |
| Maximum Zener Impedance | ZZT | | | 100 | Ω | IZ = IZT | 3 |
| Maximum Zener Impedance | ZZK | | | 55 | Ω | IZ = 0.5 mA | 3 |
| Reverse Leakage Current | IR | | | 0.05 | μA | VR = 15.4 V | 3 |
| Maximum Temperature Coefficient of VZ | dVZ/dt | 16.4 | | 20 | mV/k | IZT1 = 5 mA | 3 |
| Max. Capacitance | C | | | 85 | pF | VR = 0, f = 1 MHz | 3 |
| Forward Voltage | VF | | | 0.9 | V | IF = 10 mA | 2 |
| Total Device Dissipation FR-4 Board | PD | | | 300 | mW | TA = 25°C (Note 1) | 2 |
| Derate above 25°C | PD | | | 2.4 | mW/°C | Derate above 25°C | 2 |
| Thermal Resistance from Junction-to-Ambient | RJA | | | 416 | °C/W | | 2 |
| Junction and Storage Temperature Range | TJ, Tstg | -65 | | 150 | °C | | 2 |
## 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 | LEADS: Plated with Pb−Sn or Sn only (Pb−Free) POLARITY: Cathode indicated by polarity band | 1 |
## CAD (KiCad official)
- Symbol: `MM3Z22VST1G`
- Footprint: `Diode_SMD:D_SOD-323`
- 3D model: SOD-323 (KiCad packages3D, STEP)
- 3D model files: `mm3z22vst1g-etched.step` / `mm3z22vst1g-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `mm3z22vst1g.step` / `mm3z22vst1g.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [onsemi datasheet](https://www.onsemi.com/pdf/datasheet/mm3z22vst1-d.pdf) (6 pp, sha256 `6327225eeeaa38aa`, retrieved 2026-10-27, tier: manufacturer)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-5-5` (agreed (audit)), 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](docs/mm3z22vst1g-datasheet.pdf)