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BZT52C18S-7-F

Public Made by Adom

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Diodes Incorporated Zener Diodes, SOD-323. Diode: pin 1 is the cathode (the banded end) by the KiCad diode-footprint convention, KiCad symbol/footprint/3D.

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BZT52C18S-7-F

Diodes Incorporated · Zener Diodes · SOD-323

BZT52C18S-7-F from Diodes Incorporated, 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 Diodes Incorporated
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 (min) VZ 16.8 V @IZT = 5mA 2
Zener voltage (max) VZ 19.1 V @IZT = 5mA 2
Maximum Zener impedance ZZT 45 Ω f = 1kHz, @IZT = 5mA 2
Maximum Zener impedance (knee) ZZK 225 Ω @IZK = 1.0mA 2
Maximum reverse current IR 0.1 µA @VR = 12.6V 2
Temperature coefficient of Zener voltage (min) 12.4 mV/°C @IZT = 5mA 2
Forward voltage VF 0.9 V @IF = 10mA 2
Power dissipation PD 200 mW Note 7: FR-4 PC board, recommended pad layout 2
Thermal resistance, junction to ambient air RJA 625 °C/W Note 7: FR-4 PC board, recommended pad layout 2
Operating and storage temperature range TJ, TSTG -65 150 °C 2
Nominal Zener voltage VZ 18 V Nom, @IZT = 5mA 2

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: Matte Tin Finish Annealed over Alloy 42 Leadframe (Lead Free Plating). 1

CAD (KiCad official)

  • Symbol: BZT52C18S-7-F
  • Footprint: Diode_SMD:D_SOD-323
  • 3D model: SOD-323 (KiCad packages3D, STEP)
  • 3D model files: bzt52c18s-7-f-etched.step / bzt52c18s-7-f-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bzt52c18s-7-f.step / bzt52c18s-7-f.glb are the bare package body.

Provenance

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

  • Datasheet: Diodes Incorporated datasheet (5 pp, sha256 2c741d3bc71639b7, retrieved 2026-10-31, 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