component

MM3Z3V3B

Public Made by Adom

by adom

onsemi Zener Diodes, SOD-323F. Pinout cross-checked by two models against the datasheet, 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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mm3z3v3b-etched.step mm3z3v3b: factory component page (tier=mfr) · Ray 12d ago
mm3z3v3b-hero.glb mm3z3v3b: hero GLB from the etched model (keeps the MPN mark) · Ray 12d ago
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mm3z3v3b.glb Publish 0.1.0 · Ray 12d ago
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mm3z3v3b.step Publish 0.1.0 · Ray 12d ago
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MM3Z3V3B

onsemi · Zener Diodes · SOD-323F

MM3Z3V3B from onsemi, in a SOD-323F. 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 Band-side terminal of the Zener diode (the datasheet states the band denotes cathode); for MM3Z3V3B the nominal Zener voltage is 3.3 V with 3.23 V min and 3.37 V max at IZT = 5 mA.
2 A passive Non-band terminal of the Zener diode, opposite the cathode; for MM3Z3V3B the maximum reverse current is 4.5 µA at VR = 1 V.

Key specifications

Parameter Value
Manufacturer onsemi
Package SOD-323F
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 3.23 3.3 3.37 V @ IZT = 5 mA; pulse test 10 ms (Note 1) 3
Zener voltage tolerance (B series) -2 2 % Standard tolerance on nominal zener voltage (B suffix) 3
Zener impedance ZZT 89 Ω @ IZT = 5 mA 3
Zener knee impedance ZZK 564 Ω @ IZK = 1 mA 3
Reverse leakage current IR 4.5 μA @ VR = 1 V 3
Forward voltage VF 1 V IF = 10 mA 2
Power dissipation PD 200 mW 2
Storage temperature range TSTG -65 150 °C 2
Maximum junction temperature TJ 150 °C 2
Thermal resistance, junction to ambient RθJA 595 °C/W Device mounted on FR-4 PCB minimum land pad 2

CAD (KiCad official)

  • Symbol: MM3Z3V3B
  • Footprint: Diode_SMD:D_SOD-323F
  • 3D model: SOD-323F (KiCad packages3D, STEP)
  • 3D model files: mm3z3v3b-etched.step / mm3z3v3b-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mm3z3v3b.step / mm3z3v3b.glb are the bare package body.

Provenance

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

  • Datasheet: onsemi datasheet (8 pp, sha256 ccf699fde8c84be0, retrieved 2026-10-21, tier: manufacturer)
  • 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