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Contents

README

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BZT52C51V

JUXING · Zener Diodes · SOD-123

BZT52C51V from JUXING, 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 Cathode passive Cathode terminal of the zener diode, pin 1 in the PINNING table and on the SOD-123W outline and symbol.
2 Anode passive Anode terminal of the zener diode, pin 2 in the PINNING table and on the SOD-123W outline and symbol.

Key specifications

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

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 (BZT52C51) VZT 48 51 54 V IZT = 2.5 mA; pulse 20 ms 2
Maximum Zener impedance (BZT52C51) ZZT 180 Ω @ IZT = 2.5 mA 2
Maximum Zener impedance at knee current (BZT52C51) ZZK 500 Ω @ IZK = 1 mA 2
Reverse current (BZT52C51) IR 1 μA @ VR = 37 V 2
Total power dissipation PD 500 mW Ta = 25 °C 1
Operating and storage temperature range Tj, Tstg -55 150 °C 1
Typical thermal resistance junction to ambient RθJA 305 °C/W PCB mounted with 7.6 mm x 9.4 mm x 0.87 mm copper pad areas 1

CAD (KiCad official)

  • Symbol: BZT52C51V
  • Footprint: Diode_SMD:D_SOD-123F
  • 3D model: SOD-123 (KiCad packages3D, STEP)
  • 3D model files: bzt52c51v-etched.step / bzt52c51v-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bzt52c51v.step / bzt52c51v.glb are the bare package body.

Provenance

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

  • Datasheet: JUXING datasheet (3 pp, sha256 00095effcd69091f, retrieved 2026-10-19, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-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