component

MM3Z12VC

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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MM3Z12VC

onsemi · Zener Diodes · SOD-323F

MM3Z12VC 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 ANODE passive Anode terminal of the zener diode; the datasheet gives no pin-level limit, and the device absolute maximum ratings apply (PD 200 mW, IZM = PD/VZ).
2 CATHODE passive Cathode terminal, identified by the band on the package; for MM3Z12VC the zener voltage VZ is 11.4 V min to 12.6 V max at IZT = 5 mA.

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 11.4 12 12.6 V @ IZT = 5 mA; pulse condition of 10 ms 2
Zener impedance ZZT 23 Ω @ IZT = 5 mA; derived from 60-cycle ac, rms equal to 10% of IZT 2
Zener impedance (knee) ZZK 141 Ω @ IZK = 1 mA 2
Reverse current IR 0.09 µA @ VR = 8 V 2
Forward voltage VF 1 V IF = 10 mA 1
Zener voltage tolerance (standard, C series) VZ -5 5 % Standard tolerance on nominal zener voltage 2
Power dissipation PD 200 mW 1
Storage temperature range TSTG -65 150 °C 1
Maximum junction temperature TJ 150 °C 1
Thermal resistance, junction to ambient RJA 595 °C/W Device mounted on PCB with minimum land pad 1

CAD (KiCad official)

  • Symbol: MM3Z12VC
  • Footprint: Diode_SMD:D_SOD-323F
  • 3D model: SOD-323F (KiCad packages3D, STEP)
  • 3D model files: mm3z12vc-etched.step / mm3z12vc-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mm3z12vc.step / mm3z12vc.glb are the bare package body.

Provenance

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

  • Datasheet: onsemi datasheet (6 pp, sha256 6232430cc62ac014, 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