component
MMSZ33VCW
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.
Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
| Name | Last updated |
|---|---|
| docs | 9d ago |
| viewers | 9d ago |
| mmsz33vcw-etched.glb | 9d ago |
| mmsz33vcw-etched.step | 9d ago |
| mmsz33vcw-hero.glb | 9d ago |
| mmsz33vcw-hero.overlay.json | 9d ago |
| mmsz33vcw.glb | 9d ago |
| mmsz33vcw.kicad_mod | 9d ago |
| mmsz33vcw.kicad_sym | 9d ago |
| mmsz33vcw.lbr | 9d ago |
| mmsz33vcw.step | 9d ago |
| package.json | 9d ago |
| page.json | 9d ago |
| README.md | 9d ago |
MMSZ33VCW
YONGYUTAI · Zener Diodes · SOD-123
MMSZ33VCW 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), min/max range | Vz | 31 | 33 | 35 | V | @ Izt = 2 mA | 2 |
| Maximum Zener impedance | Zzt | 80 | Ω | @ Izt = 2 mA | 2 | ||
| Maximum Zener impedance (knee) | Zzk | 325 | Ω | @ Izk = 0.5 mA | 2 | ||
| Maximum reverse current | IR | 0.1 | uA | at VR = 23.1 V | 2 | ||
| Typical temperature coefficient (min/max) | IZTC | 27.4 | 33.4 | mV/℃ | Test current IZTC = 2 mA | 2 | |
| Power dissipation | Pd | 500 | mW | Ratings at 25℃ ambient temperature | 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 (footnote 1) | 1 | ||
| Forward voltage | Vf | 0.9 | V | @ IF = 10 mA | 1 |
CAD (KiCad official)
- Symbol:
MMSZ33VCW - Footprint:
Diode_SMD:D_SOD-123F - 3D model: SOD-123 (KiCad packages3D, STEP)
- 3D model files:
mmsz33vcw-etched.step/mmsz33vcw-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);mmsz33vcw.step/mmsz33vcw.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).