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Contents

README

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BZT52C43

FOSAN · Zener Diodes · SOD-123

BZT52C43 from FOSAN, 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 (marked − in the symbol on page 1); the zener voltage VZ for BZT52C43 is 40.0 V min to 46.0 V max at IZT=5mA, and total dissipation is 500 mW at Ta=25℃.
2 A passive Anode (marked + in the symbol on page 1); forward voltage VF is 0.9 V at IF=10mA, and junction and storage temperature is 150℃ and -65 to +150℃.

Key specifications

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

CAD (KiCad official)

  • Symbol: BZT52C43
  • Footprint: Diode_SMD:D_SOD-123F
  • 3D model: SOD-123 (KiCad packages3D, STEP)
  • 3D model files: bzt52c43-etched.step / bzt52c43-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bzt52c43.step / bzt52c43.glb are the bare package body.

Provenance

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

  • Datasheet: FOSAN datasheet (4 pp, sha256 5ae7456598def8bb, 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