component

MM1W22

Public Made by Adom

by adom

hongjiacheng Zener Diodes, SOD-123. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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MM1W22

hongjiacheng · Zener Diodes · SOD-123

MM1W22 from hongjiacheng, 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, marked by the cathode line on the package; the Zener (reverse) voltage VZ is 20.8 V min, 22 V nom, 23.3 V max at IZT = 12 mA for the MM1W22.
2 A passive Anode terminal of the Zener diode; forward voltage VF is 1.2 V at IF = 200 mA.

Key specifications

Parameter Value
Manufacturer hongjiacheng
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
Maximum Zener impedance ZZT 23 Ω @ IZT=12 mA 2
Reverse leakage current IR 5 μA @ VR=17 V 2
Power dissipation PD 1000 mW Tc=75℃ 1
Forward voltage VF 1.2 V @ IF=200mA 1
Storage temperature Tstg -55 150 ℃ 1
Junction temperature Tj -55 150 ℃ 1
Typical thermal resistance, junction to ambient RθJ-A 375 ℃/W 1

CAD (KiCad official)

  • Symbol: MM1W22
  • Footprint: Diode_SMD:D_SOD-123F
  • 3D model: SOD-123 (KiCad packages3D, STEP)
  • 3D model files: mm1w22-etched.step / mm1w22-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mm1w22.step / mm1w22.glb are the bare package body.

Provenance

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

  • Datasheet: hongjiacheng datasheet (4 pp, sha256 cf075e0c300108c6, retrieved 2026-10-16, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-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