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MM3Z16

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

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MM3Z16

ST Semtech · Zener Diodes · SOD-323

MM3Z16 from ST Semtech, 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 terminal of the Zener diode, identified as pin 1 in the PINNING table for the SOD-323 package; the datasheet gives no pin-specific electrical limit beyond the device ratings (Ptot 300 mW, Tj 150 °C).
2 Anode passive Anode terminal of the Zener diode, identified as pin 2 in the PINNING table for the SOD-323 package; the datasheet gives no pin-specific electrical limit beyond the device ratings (Ptot 300 mW, Tj 150 °C).

Key specifications

Parameter Value
Manufacturer ST Semtech
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
Dynamic impedance at IZT ZZT 40 Ω IZT = 5 mA 2
Reverse leakage current IR 0.1 µA VR = 12 V 2
Forward voltage VF 0.9 V IF = 10 mA, Ta = 25 °C 1
Thermal resistance junction to ambient air RθJA 417 °C/W Ta = 25 °C 1
Total power dissipation Ptot 300 mW Ta = 25 °C 1
Junction temperature Tj 150 °C 1
Storage temperature range Tstg -55 150 °C 1
Zener voltage tolerance (approximate) -5 5 % Printed as 'Tolerance approximately ± 5%' in features; general for the series, not a part-numbering decode 1

CAD (KiCad official)

  • Symbol: MM3Z16
  • Footprint: Diode_SMD:D_SOD-323
  • 3D model: SOD-323 (KiCad packages3D, STEP)
  • 3D model files: mm3z16-etched.step / mm3z16-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mm3z16.step / mm3z16.glb are the bare package body.

Provenance

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

  • Datasheet: ST Semtech datasheet (4 pp, sha256 8fc2587390375e70, retrieved 2026-10-22, 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