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BZT52C18T-7

Public Made by Adom

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Diodes Incorporated Zener Diodes, SOD-523. 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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BZT52C18T-7

Diodes Incorporated · Zener Diodes · SOD-523

BZT52C18T-7 from Diodes Incorporated, in a SOD-523. 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-523
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 Nominal VZ 18 V @ IZT = 5mA 2
Zener Voltage Range VZ 16.8 19.1 V @ IZT = 5mA 2
Test Current IZT 5 mA 2
Maximum Zener Impedance ZZT 45 Ω @ IZT, f = 1kHz 2
Maximum Zener Impedance (knee) ZZK 225 Ω @ IZK = 1.0mA, f = 1kHz 2
Maximum Reverse Current IR 0.1 µA @ VR = 12.6V 2
Temperature Coefficient 12.4 16 mV/°C @ IZT 2
Forward Voltage VF 0.9 V IF = 10mA 2
Power Dissipation PD 300 mW Note 7, TA = +25°C 2
Thermal Resistance, Junction to Ambient Air RθJA 417 °C/W Note 7 2
Thermal Resistance, Junction to Case RθJC 160 °C/W Note 7 2
Operating and Storage Temperature Range TJ, TSTG -65 150 °C 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  Terminal Connections: Cathode Band  Terminals: Finish - Matte Tin Annealed over Alloy 42 Leadframe. 1

CAD (KiCad official)

  • Symbol: BZT52C18T-7
  • Footprint: Diode_SMD:D_SOD-523
  • 3D model: SOD-523 (KiCad packages3D, STEP)
  • 3D model files: bzt52c18t-7-etched.step / bzt52c18t-7-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bzt52c18t-7.step / bzt52c18t-7.glb are the bare package body.

Provenance

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

  • Datasheet: Diodes Incorporated datasheet (5 pp, sha256 f06d3ed08bd0d710, retrieved 2026-10-22, tier: manufacturer)
  • 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