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MMSZ5234BQ-7-F

Public Made by Adom

by adom

Diodes Incorporated Zener Diodes, SOD-123. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.

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MMSZ5234BQ-7-F

Diodes Incorporated · Zener Diodes · SOD-123

MMSZ5234BQ-7-F from Diodes Incorporated, in a SOD-123. 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 banded/marked end per the datasheet; pad 1 of the KiCad diode footprint.
2 A passive Anode.

Key specifications

Parameter Value
Manufacturer Diodes Incorporated
Package SOD-123
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 5.89 6.2 6.51 V @ IZT = 20mA, TA=+25°C 2
Maximum Zener Impedance ZZT 7 Ω @ IZT = 20mA, f = 1kHz 2
Maximum Zener Impedance (knee) ZZK 1000 Ω @ IZK = 0.25mA, f = 1kHz 2
Maximum Reverse Leakage Current IR 5 μA @ VR = 4.0V 2
Power Dissipation PD 500 mW @TL = +75°C (Note 4) 2
Power Dissipation PD 370 mW @TA = +25°C (Note 5) 2
Thermal Resistance, Junction to Ambient Air RθJA 338 °C/W Note 5: ceramic PCB, copper pad 40mm2 2
Thermal Resistance, Junction to Lead RθJL 132 °C/W Note 4 2
Operating and Storage Temperature Range TJ, TSTG -65 150 °C 2
Forward Voltage VF 0.9 V @ IF = 10mA, TA=+25°C 2
Test Current IZT 20 mA 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 • Terminals: Matte Tin Finish annealed over Alloy 42 leadframe (Lead Free Plating). Solderable per MIL-STD-202, Method 208 1

CAD (KiCad official)

  • Symbol: MMSZ5234BQ-7-F
  • Footprint: Diode_SMD:D_SOD-123F
  • 3D model: SOD-123 (KiCad packages3D, STEP)
  • 3D model files: mmsz5234bq-7-f-etched.step / mmsz5234bq-7-f-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mmsz5234bq-7-f.step / mmsz5234bq-7-f.glb are the bare package body.

Provenance

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

  • Datasheet: Diodes Incorporated datasheet (6 pp, sha256 1fea20eb263b98e4, retrieved 2026-10-23, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins, primary cathode-band convention (convention), consensus off (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