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MM3Z12VT1G

Public Made by Adom

by adom

onsemi Zener Diodes, SOD-323. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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MM3Z12VT1G

onsemi · Zener Diodes · SOD-323

MM3Z12VT1G from onsemi, 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 Cathode passive Cathode is marked by the polarity band on the package; the Zener regulating terminal is identified by this band, per the Style 1 pin assignment.
2 Anode passive Anode is the second terminal of the two-lead SOD-323 Zener diode, opposite the polarity-band cathode (Style 1 pin assignment).

Key specifications

Parameter Value
Manufacturer onsemi
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
Reverse Zener Voltage VZ 11.4 12 12.7 V @ IZT = 5 mA; pulse test at TA = 25°C (Note 2) 2
Maximum Zener Impedance ZZT 25 Ω @ IZT = 5 mA 2
Maximum Zener Impedance ZZK 80 Ω @ IZK = 0.5 mA 2
Maximum Temperature Coefficient of VZ VZ 6 10 mV/k 2
Max. Capacitance C 130 pF @ VR = 0 and f = 1 MHz 2
Forward Voltage VF 0.9 V @ IF = 10 mA (for all types) 2
Total Device Dissipation PD 300 mW FR-4 board, single-sided copper, mounting pad 1 cm2, @ TA = 25°C (Note 1) 1
Derate above 25°C 2.4 mW/°C Derate above 25°C 1
Thermal Resistance, Junction-to-Ambient RJA 416 °C/W 1
Junction and Storage Temperature Range TJ, Tstg -65 150 °C 1

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
contacts tin LEADS: Plated with Pb−Sn or Sn Only (Pb−Free) POLARITY: Cathode Indicated by Polarity Band 1

CAD (KiCad official)

  • Symbol: MM3Z12VT1G
  • Footprint: Diode_SMD:D_SOD-323
  • 3D model: SOD-323 (KiCad packages3D, STEP)
  • 3D model files: mm3z12vt1g-etched.step / mm3z12vt1g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mm3z12vt1g.step / mm3z12vt1g.glb are the bare package body.

Provenance

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

  • Datasheet: onsemi datasheet (5 pp, sha256 c3256d6f49d685e2, retrieved 2026-10-23, 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