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MMBZ5234BW-7-F

Public Made by Adom

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

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MMBZ5234BW-7-F

Diodes Incorporated · Zener Diodes · SOT-323

MMBZ5234BW-7-F from Diodes Incorporated, in a SOT-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 A passive Zener anode, the bottom-left lead in the device schematic, connected to the diode symbol.
2 NC unconnected Bottom-right lead in the device schematic; it has no connection to the diode.
3 K passive Zener cathode, the single top lead in the device schematic; VZ is 5.89 V min to 6.51 V max at IZT = 20 mA for the MMBZ5234BW.

Key specifications

Parameter Value
Manufacturer Diodes Incorporated
Package SOT-323
Category Diodes
Pins 3

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 (6.2 V nominal, MMBZ5234BW) VZ 5.89 6.2 6.51 V IZT = 20 mA 2
Maximum reverse leakage current IR 5 μA VR = 4.0 V 2
Maximum Zener impedance ZZT 7 Ω IZT = 20 mA; f = 1 kHz (Note 8) 2
Maximum Zener impedance at knee ZZK 1000 Ω IZK = 0.25 mA 2
Forward voltage VF 0.9 V IF = 10 mA 2
Power dissipation PD 200 mW Note 6: mounted on FR4 PC board with recommended pad layout 2
Thermal resistance, junction to ambient air RθJA 625 °C/W Note 6: mounted on FR4 PC board with recommended pad layout 2
Operating 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 • Terminals: Matte Tin Finish annealed over Alloy 42 leadframe (Lead Free Plating). Solderable per MIL-STD-202, Method 208 1

CAD (KiCad official)

  • Symbol: MMBZ5234BW-7-F
  • Footprint: Package_TO_SOT_SMD:SOT-323_SC-70
  • 3D model: SOT-323 (KiCad packages3D, STEP)
  • 3D model files: mmbz5234bw-7-f-etched.step / mmbz5234bw-7-f-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mmbz5234bw-7-f.step / mmbz5234bw-7-f.glb are the bare package body.

Provenance

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

  • Datasheet: Diodes Incorporated datasheet (5 pp, sha256 e002c9bed5a34a64, retrieved 2026-10-21, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-opus-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