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BZT52C18S

Public Made by Adom

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Yangzhou Yangjie Elec Tech Zener Diodes, SOD-323(SC-90). 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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BZT52C18S

Yangzhou Yangjie Elec Tech · Zener Diodes · SOD-323(SC-90)

BZT52C18S from Yangzhou Yangjie Elec Tech, in a SOD-323(SC-90). 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 Yangzhou Yangjie Elec Tech
Package SOD-323(SC-90)
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 (min) Vz 16.8 V IZT = 5 mA 2
Zener voltage (typ) Vz 18 V IZT = 5 mA 2
Zener voltage (max) Vz 19.1 V IZT = 5 mA 2
Dynamic impedance at IZT Zzt 45 Ω IZT = 5 mA 2
Dynamic impedance at IZK Zzk 225 Ω IZK = 1.0 mA 2
Reverse current IR 0.1 µA VR = 12.6 V 2
Typical temperature coefficient (column 1) 12.4 mV/°C @IZTC 2
Typical temperature coefficient (column 2) 16 mV/°C @IZTC 2
Power dissipation PD 200 mW 1
Maximum forward voltage VF 0.9 V IF = 10 mAdc 1
Storage temperature range Tstg -55 150 °C 1
Maximum junction temperature TJ -55 150 °C 1
Thermal resistance junction to ambient air RθJA 650 °C/W 1

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
contacts tin ● Terminals: Tin plated leads, solderable per J-STD-002 and JESD22-B102 1

CAD (KiCad official)

  • Symbol: BZT52C18S
  • Footprint: Diode_SMD:D_SOD-323
  • 3D model: SOD-323(SC-90) (KiCad packages3D, STEP)
  • 3D model files: bzt52c18s-etched.step / bzt52c18s-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bzt52c18s.step / bzt52c18s.glb are the bare package body.

Provenance

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

  • Datasheet: Yangzhou Yangjie Elec Tech datasheet (5 pp, sha256 539a49f715cc3de1, retrieved 2026-10-21, 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