component

MMSZ20VCW

Public Made by Adom

by 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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Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
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MMSZ20VCW

YONGYUTAI · Zener Diodes · SOD-123

MMSZ20VCW 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 (nominal 20 V) Vz 18.8 20 21.2 V @ IZT 5 mA 2
Maximum Zener impedance Zzt Zzt 55 Ω @ IZT 5 mA 2
Maximum Zener impedance Zzk Zzk 225 Ω @ IZK 1.0 mA 2
Maximum reverse current IR IR 0.1 uA @ VR 14.0 V 2
Temperature coefficient (typical, min/max as printed) 14.4 18 mV/℃ @ IZTC 5 mA 2
Storage temperature range Ts -65 150 ℃ 1
Power dissipation Pd 500 mW 1
Forward voltage Vf 0.9 V @ IF=10mA 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: MMSZ20VCW
  • Footprint: Diode_SMD:D_SOD-123F
  • 3D model: SOD-123 (KiCad packages3D, STEP)
  • 3D model files: mmsz20vcw-etched.step / mmsz20vcw-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mmsz20vcw.step / mmsz20vcw.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: YONGYUTAI datasheet (5 pp, sha256 6a03accc35d17660, retrieved 2026-10-20, 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