component

BZT52C20S

Public Made by Adom

by adom

Changjing Zener Diodes, SOD-323. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, 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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BZT52C20S

Changjing · Zener Diodes · SOD-323

BZT52C20S from Changjing, in a SOD-323. 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: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint.
2 A passive Anode.

Key specifications

Parameter Value
Manufacturer Changjing
Package SOD-323
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 VZ 18.8 20 21.2 V IZT = 5 mA 2
Maximum Zener Impedance ZZT 55 Ω IZT = 5 mA, f = 1kHz 2
Maximum Zener Impedance (knee) ZZK 225 Ω IZK = 1.0 mA, f = 1kHz 2
Maximum Reverse Current IR 0.1 µA VR = 14.0 V 2
Typical Temperature Coefficient 14.4 18 mV/℃ IZTC = 5 mA 2
Forward Voltage VF 0.9 V IF = 10mA 1
Power Dissipation PD 200 mW Ta=25℃, on ceramic PCB 1
Thermal Resistance from Junction to Ambient RθJA 625 ℃/W 1
Junction Temperature Tj 150 ℃ 1
Storage Temperature Range Tstg -55 150 ℃ 1
Nominal Zener Test Current IZT 5 mA 2

CAD (KiCad official)

  • Symbol: BZT52C20S
  • Footprint: Diode_SMD:D_SOD-323
  • 3D model: SOD-323 (KiCad packages3D, STEP)
  • 3D model files: bzt52c20s-etched.step / bzt52c20s-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bzt52c20s.step / bzt52c20s.glb are the bare package body.

Provenance

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

  • Datasheet: Changjing datasheet (5 pp, sha256 7ef3255afcefdb65, retrieved 2026-10-22, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins, primary cathode-band convention (convention), consensus off (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