component

MMBZ33VAL

Public Made by Adom

by adom

DOWO ESD And Surge Protection (TVS/ESD), SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Generated by kicad-footprint-generator · KiCad file format 20260206
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docs Publish 0.1.0 · Ray 3h ago
viewers mmbz33val: viewers · Ray 3h ago
mmbz33val-etched.glb mmbz33val: factory component page (tier=lcsc) · Ray 3h ago
mmbz33val-etched.step mmbz33val: factory component page (tier=lcsc) · Ray 3h ago
mmbz33val-hero.glb mmbz33val: hero GLB from the etched model (keeps the MPN mark) · Ray 3h ago
mmbz33val-hero.overlay.json Publish 0.1.0 · Ray 3h ago
mmbz33val.glb Publish 0.1.0 · Ray 3h ago
mmbz33val.kicad_mod Publish 0.1.0 · Ray 3h ago
mmbz33val.kicad_sym Publish 0.1.0 · Ray 3h ago
mmbz33val.lbr Publish 0.1.0 · Ray 3h ago
mmbz33val.step Publish 0.1.0 · Ray 3h ago
package.json Publish 0.1.0 · Ray 3h ago
page.json Set visibility: public · Ray 3h ago
README.md Publish 0.1.0 · Ray 3h ago

MMBZ33VAL

DOWO · ESD And Surge Protection (TVS/ESD) · SOT-23

MMBZ33VAL from DOWO, in a SOT-23. 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 K1 passive Cathode of the first Zener diode (unidirectional line 1, circuit tied to pins 1 and 3), with VBR 31.35V min to 34.65V max at IT=1mA and VRWM 26.0V for MMBZ33VAL.
2 K2 passive Cathode of the second Zener diode (unidirectional line 2, circuit tied to pins 2 and 3), with VBR 31.35V min to 34.65V max at IT=1mA and VRWM 26.0V for MMBZ33VAL.
3 A passive Common anode of both Zener diodes, shared by the two protected lines; the pair can also be used as a single bidirectional configuration.

Key specifications

Parameter Value
Manufacturer DOWO
Package SOT-23
Category Circuit Protection
Pins 3

CAD (KiCad official)

  • Symbol: MMBZ33VAL
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: mmbz33val-etched.step / mmbz33val-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mmbz33val.step / mmbz33val.glb are the bare package body.

Provenance

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

  • Datasheet: DOWO datasheet (5 pp, sha256 3c3e6f105b61864b, retrieved 2026-10-09, 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