Loads on click. Unloads only if this page sits in the background.

Symbol & Footprint

Schematic Symbol

Open full view ↗
Loads on click. Unloads only if this page sits in the background.

PCB Footprint

Open full view ↗
Loads on click. Unloads only if this page sits in the background.
Loads on click. Unloads only if this page sits in the background.
Download PDF
Contents

README

markdown

MMSZ5229BQ-7-F

Diodes Incorporated · Zener Diodes · SOD-123

MMSZ5229BQ-7-F from Diodes Incorporated, in a SOD-123. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 K passive Cathode. Marked by the cathode band on the package. In Zener regulation, connects to the higher-potential rail (reverse-biased operation) with VZ(nom) = 4.3V.
2 A passive Anode. Opposite end from the cathode band. Forward voltage VF = 0.9V @ IF = 10mA.

Key specifications

Parameter Value
Manufacturer Diodes Incorporated
Package SOD-123
Category Diodes
Pins 2

Ordering variants

Same part, different packaging or reel option.

  • MMSZ5229BQ-7-F
  • MMSZ5229BQ-7-F-13-F
  • MMSZ5229BQ-7-FQ-13-F

CAD (KiCad official)

  • Symbol: MMSZ5229BQ-7-F
  • Footprint: Diode_SMD:D_SOD-123
  • 3D model: SOD-123 (KiCad packages3D, STEP)
  • 3D model files: mmsz5229bq-7-f-etched.step / mmsz5229bq-7-f-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mmsz5229bq-7-f.step / mmsz5229bq-7-f.glb are the bare package body.

Provenance

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

  • Datasheet: Diodes Incorporated datasheet (None pp, sha256 7c7ac7a58521db27, retrieved 2026-08-17, tier: lcsc)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF