component

MM3Z22BW

Public Made by Adom

by adom

JSMSEMI Zener Diodes, SOD-323. 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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MM3Z22BW

JSMSEMI · Zener Diodes · SOD-323

MM3Z22BW from JSMSEMI, in a SOD-323. 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 JSMSEMI
Package SOD-323
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
Voltage tolerance (B-series) -2 2 % B-series 1
Zener dynamic impedance ZZT 55 Ω at IZT = 5 mA 2
Reverse current IR 0.1 μA VR = 17 V 2
Forward voltage VF 0.9 V IF = 10 mA 1
Power dissipation PD 400 mW Device mounted on FR4 PCB, single-sided copper, tin-plated, standard footprint 1
Junction temperature range TJ -55 150 °C 1
Storage temperature range TSTG -65 150 °C 1
Thermal resistance, junction-to-ambient RθJA 313 °C/W Device mounted on FR4 PCB, single-sided copper, tin-plated, standard footprint 1

CAD (KiCad official)

  • Symbol: MM3Z22BW
  • Footprint: Diode_SMD:D_SOD-323
  • 3D model: SOD-323 (KiCad packages3D, STEP)
  • 3D model files: mm3z22bw-etched.step / mm3z22bw-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mm3z22bw.step / mm3z22bw.glb are the bare package body.

Provenance

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

  • Datasheet: JSMSEMI datasheet (4 pp, sha256 25cc80d24f84e9f6, retrieved 2026-10-22, 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