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BZT52C39W

Public Made by Adom

by adom

CBI Zener Diodes, SOD-123. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
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BZT52C39W

CBI · Zener Diodes · SOD-123

BZT52C39W from CBI, 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 of the Zener diode (pin 1 in the SOD-123 pinning), with nominal Zener voltage 39 V (range 37 to 41 V) tested at IZT 2 mA.
2 Anode passive Anode of the Zener diode (pin 2 in the SOD-123 pinning), opposite the cathode, with forward voltage VF of 0.9 V at IF 10 mA.

Key specifications

Parameter Value
Manufacturer CBI
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
Dynamic impedance ZZT 130 Ω IZT = 2 mA 2
Dynamic impedance ZZK 350 Ω IZK = 0.5 mA 2
Reverse leakage current IR 0.1 μA VR = 27.3 V 2
Power dissipation Ptot 500 mW Ta = 25 °C 1
Junction temperature TJ 150 °C 1
Storage temperature range TStg -65 150 °C 1
Thermal resistance junction to ambient air RthA 340 °C/W 1
Forward voltage VF 0.9 V IF = 10 mA 1

CAD (KiCad official)

  • Symbol: BZT52C39W
  • Footprint: Diode_SMD:D_SOD-123F
  • 3D model: SOD-123 (KiCad packages3D, STEP)
  • 3D model files: bzt52c39w-etched.step / bzt52c39w-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bzt52c39w.step / bzt52c39w.glb are the bare package body.

Provenance

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

  • Datasheet: CBI datasheet (3 pp, sha256 de2c9ae1a3f97b6e, retrieved 2026-10-27, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus off (skipped (clean text read)), 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