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BZT52C51

LGE · Zener Diodes · SOD-123

BZT52C51 from LGE, 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 of the Zener diode (marked-band side); for BZT52C51 the Zener voltage is 51V nominal (48.0V to 54.0V) at IZT=5mA.
2 A passive Anode of the Zener diode; the datasheet gives 500mW maximum power dissipation on ceramic PCB and 150℃ maximum junction temperature for the package.

Key specifications

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

CAD (KiCad official)

  • Symbol: BZT52C51
  • Footprint: Diode_SMD:D_SOD-123F
  • 3D model: SOD-123 (KiCad packages3D, STEP)
  • 3D model files: bzt52c51-etched.step / bzt52c51-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bzt52c51.step / bzt52c51.glb are the bare package body.

Provenance

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

  • Datasheet: LGE datasheet (3 pp, sha256 8bae967198e01a40, 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