component

MMBZ5225B-7-F

Public Made by Adom

by adom

Diodes Incorporated Zener Diodes, SOT-23-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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MMBZ5225B-7-F

Diodes Incorporated · Zener Diodes · SOT-23-3

MMBZ5225B-7-F from Diodes Incorporated, in a SOT-23-3. 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 Anode of the Zener diode, shown on the bottom-left terminal of the device schematic.
2 NC unconnected Bottom-right terminal with no internal connection in the device schematic.
3 K passive Cathode of the Zener diode, shown on the top terminal of the device schematic.

Key specifications

Parameter Value
Manufacturer Diodes Incorporated
Package SOT-23-3
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 VZ 2.85 3 3.15 V @ IZT = 20 mA (nominal 3.0 V; MMBZ5225B row) 3
Maximum reverse leakage current IR 50 µA @ VR = 1.0 V 3
Maximum Zener impedance ZZT 30 Ω @ IZT = 20 mA, f = 1kHz 3
Maximum Zener impedance (knee) ZZK 1600 Ω @ IZK = 0.25 mA 3
Forward voltage VF 0.9 V @ IF = 10 mA 2
Power dissipation PD 350 mW Note 6: mounted on FR4 PC board with recommended pad layout 2
Thermal resistance, junction to ambient air RθJA 357 °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  Terminal Connections: See Diagram  Terminals: Matte Tin Finish Annealed over Alloy 42 Leadframe 1

CAD (KiCad official)

  • Symbol: MMBZ5225B-7-F
  • Footprint: Package_TO_SOT_SMD:SOT-23-3
  • 3D model: SOT-23-3 (KiCad packages3D, STEP)
  • 3D model files: mmbz5225b-7-f-etched.step / mmbz5225b-7-f-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mmbz5225b-7-f.step / mmbz5225b-7-f.glb are the bare package body.

Provenance

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

  • Datasheet: Diodes Incorporated datasheet (7 pp, sha256 be3510eb4019f5d5, retrieved 2026-10-24, tier: manufacturer)
  • 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