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Contents

README

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MM5Z12VT5GF

Nexperia · Zener Diodes · SOD-523

MM5Z12VT5GF from Nexperia, in a SOD-523. 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; the marking bar on the package indicates the cathode.
2 A passive Anode of the Zener diode.

Key specifications

Parameter Value
Manufacturer Nexperia
Package SOD-523
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
Working voltage (nominal 12 V) VZ 11.76 12.24 V Tj = 25 °C unless otherwise specified 4
Series tolerance (working voltage) -2 2 % Tolerance series ±2 % (Features) 1
Differential resistance rdiff 0.1 Ω 4
Reverse current, IZ = 1 mA column IR 150 µA VR = 8.0 V; Tj = 25 °C unless otherwise specified 4
Reverse current, IZ = 5 mA column IR 10 µA VR = 8.0 V; Tj = 25 °C unless otherwise specified 4
Temperature coefficient SZ 6 10 mV/K IZ = 5 mA; Tj = 25 °C to 150 °C (Fig. 4/5 note) 4
Diode capacitance Cd 105 pF f = 1 MHz; VR = 0 V 4
Forward voltage VF 0.9 V IF = 10 mA; pulse test tp ≤ 300 µs; δ ≤ 0.02 3
Forward voltage VF 1.1 V IF = 100 mA; pulse test tp ≤ 300 µs; δ ≤ 0.02 3
Forward current IF 200 mA 3
Non-repetitive peak reverse power dissipation PZSM 40 W tp = 100 µs; square wave; Tamb = 25 °C; prior to surge 3
Total power dissipation Ptot 300 mW Tamb = 25 °C; FR4 PCB with ~35 mm² Cu area at cathode tab 3
Junction temperature Tj 150 °C 3
Ambient temperature Tamb -55 150 °C 3
Storage temperature Tstg -65 150 °C 3
Thermal resistance, junction to ambient Rth(j-a) 350 K/W In free air; FR4 PCB with ~35 mm² Cu area at cathode tab 3
Thermal resistance, junction to solder point Rth(j-sp) 65 K/W Soldering point of cathode tab 3

CAD (KiCad official)

  • Symbol: MM5Z12VT5GF
  • Footprint: Diode_SMD:D_SOD-523
  • 3D model: SOD-523 (KiCad packages3D, STEP)
  • 3D model files: mm5z12vt5gf-etched.step / mm5z12vt5gf-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mm5z12vt5gf.step / mm5z12vt5gf.glb are the bare package body.

Provenance

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

  • Datasheet: Nexperia datasheet (10 pp, sha256 08b4a2eadc28621c, 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