component
MMSZ5V1CW
Public Made by Adomby adom
YONGYUTAI Zener Diodes, SOD-123. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.
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MMSZ5V1CW
YONGYUTAI · Zener Diodes · SOD-123
MMSZ5V1CW from YONGYUTAI, 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 | K | passive | Cathode: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint. |
| 2 | A | passive | Anode. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | YONGYUTAI |
| 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 | Vz | 4.8 | 5.1 | 5.4 | V | @ Izt 5 mA | 1 |
| Maximum Zener impedance | Zzt | 60 | Ω | @ Izt 5 mA | 1 | ||
| Maximum Zener impedance (knee) | Zzk | 480 | Ω | @ Izk 1.0 mA | 1 | ||
| Maximum reverse current | IR | 2 | uA | VR = 2.0 V | 1 | ||
| Temperature coefficient of Zener voltage | -2.7 | 1.2 | mV/°C | @ IZTC 5 mA | 1 | ||
| Power dissipation | Pd | 500 | mW | 1 | |||
| Storage temperature range | Ts | -65 | 150 | ℃ | 1 | ||
| Thermal resistance junction to ambient air | RthA | 400 | K/W | Device mounted on ceramic PCB 7.6mm x 9.4mm x 0.87mm with pad areas 25mm² | 1 |
CAD (KiCad official)
- Symbol:
MMSZ5V1CW - Footprint:
Diode_SMD:D_SOD-123F - 3D model: SOD-123 (KiCad packages3D, STEP)
- 3D model files:
mmsz5v1cw-etched.step/mmsz5v1cw-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);mmsz5v1cw.step/mmsz5v1cw.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: YONGYUTAI datasheet (5 pp, sha256
6a03accc35d17660, retrieved 2026-10-18, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins, primarycathode-band convention(convention), consensusoff(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).
# MMSZ5V1CW
**YONGYUTAI** · Zener Diodes · SOD-123
MMSZ5V1CW from YONGYUTAI, 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 | K | passive | Cathode: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint. |
| 2 | A | passive | Anode. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | YONGYUTAI |
| 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 | Vz | 4.8 | 5.1 | 5.4 | V | @ Izt 5 mA | 1 |
| Maximum Zener impedance | Zzt | | | 60 | Ω | @ Izt 5 mA | 1 |
| Maximum Zener impedance (knee) | Zzk | | | 480 | Ω | @ Izk 1.0 mA | 1 |
| Maximum reverse current | IR | | | 2 | uA | VR = 2.0 V | 1 |
| Temperature coefficient of Zener voltage | | -2.7 | | 1.2 | mV/°C | @ IZTC 5 mA | 1 |
| Power dissipation | Pd | | | 500 | mW | | 1 |
| Storage temperature range | Ts | -65 | | 150 | ℃ | | 1 |
| Thermal resistance junction to ambient air | RthA | | | 400 | K/W | Device mounted on ceramic PCB 7.6mm x 9.4mm x 0.87mm with pad areas 25mm² | 1 |
## CAD (KiCad official)
- Symbol: `MMSZ5V1CW`
- Footprint: `Diode_SMD:D_SOD-123F`
- 3D model: SOD-123 (KiCad packages3D, STEP)
- 3D model files: `mmsz5v1cw-etched.step` / `mmsz5v1cw-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `mmsz5v1cw.step` / `mmsz5v1cw.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [YONGYUTAI datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590215124239097856) (5 pp, sha256 `6a03accc35d17660`, retrieved 2026-10-18, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins`, primary `cathode-band convention` (convention), consensus `off` (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](docs/mmsz5v1cw-datasheet.pdf)