For BusinessPricing
Request a demo

BZT52C18SQ AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

BZT52C18SQ product

BZT52C18SQ

Zener Diodes

18 V ZenerSOD-323300 mWAEC-Q101AutomotiveRoHS

BZT52C18SQ is an 18 V, 300 mW SOD-323 Zener diode intended for general regulation and automotive electronics. The Q suffix identifies the AEC-Q101-qualified version.

Best for

  • Low-power 18 V voltage-reference and regulation functions
  • Automotive electronics requiring an AEC-Q101-qualified Zener option
  • Compact SOD-323 board designs

Avoid if

  • Applications requiring a tightly regulated 18 V output across current and temperature
  • Circuits that exceed the derated 300 mW dissipation limit
  • High-energy surge protection without separate surge verification

Check before use

  • Confirm operating Zener current around the specified 5 mA test point
  • Calculate dissipation using worst-case input voltage and load conditions
  • Verify reverse leakage at the circuit operating voltage
  • Observe the cathode line package marking

Key specifications

Zener voltage
18 V typical at 5 mA; 16.8 V to 19.1 V
Power dissipation
300 mW
Dynamic impedance
45 Ω max at 5 mA
Package
SOD-323

Compliance & Environment

RoHS
Compliant
REACH
-
MSL
MSL 1
ECCN
-
HTSUS
-

Application

General voltage regulationAutomotive electronics

Datasheet

1af152f935da82c44309b4cb7994de02_BZT52C18SQ.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for BZT52C18SQ: KiCad symbol & footprint, Altium footprint, PCB footprint, and 3D model.

EDA Symbol
Schematic symbol for your EDA tool
Get Files
PCB Footprint
Land pattern for PCB layout
Get Files
3D Model
STEP file for mechanical design
Get Files
KiCad Library
Verified KiCad 8 symbol, footprint, and 3D model
Generate library

Login required · CAD models billed separately as an add-on

Alternative components

Alternatives are being enriched. Analyze this part in PartGenie for the latest matches.

Design and risk insights

Questions & answers

BZT52C18SQ is a small-signal 18 V nominal Zener diode from Yangjie in the SOD-323 surface-mount package. It has a 300 mW power-dissipation rating and a ±5% approximately Zener-voltage tolerance.