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BZT52C20W

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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BZT52C20W

CBI · Zener Diodes · SOD-123

BZT52C20W 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; for the BZT52C20W the Zener voltage is 18.8...21.2 V (nominal 20 V) at IZT = 5 mA.
2 Anode passive Anode of the Zener diode; forward voltage is max. 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 55 Ω IZT = 5 mA 2
Dynamic Impedance ZZK 225 Ω IZK = 1 mA 2
Reverse Leakage Current IR 0.1 μA VR = 14 V 2
Forward Voltage VF 0.9 V IF = 10 mA 1
Thermal Resistance Junction to Ambient Air RthA 340 °C/W Ta = 25 °C 1
Power Dissipation Ptot 500 mW Ta = 25 °C 1
Junction Temperature TJ 150 °C Ta = 25 °C 1
Storage Temperature Range TStg -65 150 °C Ta = 25 °C 1

CAD (KiCad official)

  • Symbol: BZT52C20W
  • Footprint: Diode_SMD:D_SOD-123F
  • 3D model: SOD-123 (KiCad packages3D, STEP)
  • 3D model files: bzt52c20w-etched.step / bzt52c20w-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bzt52c20w.step / bzt52c20w.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 2026-10-23, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-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