component

MM5Z51

Public Made by Adom

by adom

YFW Zener Diodes, SOD-523. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentdiodesmm5z51factory-2.0.0extractor-text
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity
main
Download ZIP Propose a change
Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
Name Last commit message Last updated
docs Publish 0.1.0 · Ray 3d ago
viewers mm5z51: viewers · Ray 3d ago
mm5z51-etched.glb Publish 0.1.0 · Ray 3d ago
mm5z51-etched.step mm5z51: factory component page (tier=lcsc) · Ray 3d ago
mm5z51-hero.glb mm5z51: hero GLB from the etched model (keeps the MPN mark) · Ray 3d ago
mm5z51-hero.overlay.json Publish 0.1.0 · Ray 3d ago
mm5z51.glb Publish 0.1.0 · Ray 3d ago
mm5z51.kicad_mod Publish 0.1.0 · Ray 3d ago
mm5z51.kicad_sym Publish 0.1.0 · Ray 3d ago
mm5z51.lbr Publish 0.1.0 · Ray 3d ago
mm5z51.step Publish 0.1.0 · Ray 3d ago
package.json Publish 0.1.0 · Ray 3d ago
page.json Set visibility: public · Ray 3d ago
README.md Publish 0.1.0 · Ray 3d ago

MM5Z51

YFW · Zener Diodes · SOD-523

MM5Z51 from YFW, 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; MM5Z51 has a nominal Zener voltage of 51 V (48 to 54 V) at IZT = 1 mA.
2 Anode passive Anode of the Zener diode; forward voltage max 0.9 V at IF = 10 mA.

Key specifications

Parameter Value
Manufacturer YFW
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
Total Device Dissipation Ptot 200 mW Ta = 25 °C 1
Junction and Storage Temperature Range Tj, Tstg -65 150 °C 1
Forward Voltage VF 0.9 V IF = 10 mA, Ta = 25 °C 1
Zener Voltage VZT 48 51 54 V at IZT = 1 mA, tested with pulses tp = 20 ms 2
Zener Impedance ZZT 180 Ω at IZT = 1 mA 2
Zener Impedance (knee) ZZK 500 Ω at IZK = 1 mA 2
Leakage Current IR 1 µA at VR = 39 V 2

CAD (KiCad official)

  • Symbol: MM5Z51
  • Footprint: Diode_SMD:D_SOD-523
  • 3D model: SOD-523 (KiCad packages3D, STEP)
  • 3D model files: mm5z51-etched.step / mm5z51-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mm5z51.step / mm5z51.glb are the bare package body.

Provenance

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

  • Datasheet: YFW datasheet (3 pp, sha256 b2277c1e163f8bfb, retrieved 2026-10-22, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text), consensus claude-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).

Datasheet PDF