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MM3Z27VST1G

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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MM3Z27VST1G

onsemi · Zener Diodes · SOD-323

MM3Z27VST1G 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 K passive Cathode, indicated by the polarity band; connects to the positive side for reverse Zener regulation (VZ 26.19 V min to 27.53 V max at IZT = 5 mA for the 27 V part).
2 A passive Anode of the Zener diode; forward voltage is 0.9 V max at IF = 10 mA.

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
Zener Voltage VZ 26.19 27.53 V IZT = 5.0 mA, TA = 25°C 3
Test Current IZT 5 mA 3
Maximum Zener Impedance ZZK 300 Ω IZ = 0.5 mA 3
Maximum Zener Impedance ZZT 80 Ω IZ = IZT 3
Reverse Leakage Current IR 0.05 µA VR = 18.9 V 3
Temperature Coefficient of VZ dVZ/dt 21.4 25.3 mV/K IZT1 = 5 mA 3
Capacitance C 70 pF VR = 0, f = 1 MHz 3
Forward Voltage VF 0.9 V IF = 10 mA 2
Total Device Dissipation PD 300 mW FR-4 board, TA = 25°C 2
Derating above 25°C 2.4 mW/°C FR-4 board, above 25°C 2
Thermal Resistance Junction-to-Ambient RθJA 416 °C/W FR-4 board, 1 cm2 pad 2
Junction and Storage Temperature Range TJ, Tstg -65 150 °C 2

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: MM3Z27VST1G
  • Footprint: Diode_SMD:D_SOD-323
  • 3D model: SOD-323 (KiCad packages3D, STEP)
  • 3D model files: mm3z27vst1g-etched.step / mm3z27vst1g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mm3z27vst1g.step / mm3z27vst1g.glb are the bare package body.

Provenance

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

  • Datasheet: onsemi datasheet (5 pp, sha256 70e11c47ee66f0bd, retrieved 2026-10-22, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-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