BZX84-C18/LF1R

Single Zener Diodes Overview

The BZX84-C18/LF1R is a single Zener diode manufactured by NXP USA Inc. It features an 18V nominal Zener voltage with a tolerance of ±5%. The device operates in surface-mount SOT-23 packages and dissipates up to 350mW. Key electrical parameters include a maximum reverse leakage current of 50nA, a Zener impedance of 45 Ohms at a test current of 5mA, and a voltage temperature coefficient of 14.2 mV/K. It supports operating temperatures from -55°C to +150°C.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation for circuit protection and reference applications
• Designed for surface-mount assembly using compact SOT-23 packaging
• Ensures low leakage current and defined impedance characteristics

Single Zener Diodes Applications

• Voltage regulation in electronic circuits
• Overvoltage protection components
• Reference voltage generation

Single Zener Diodes Procurement Notes

Verify the specific suffix LF1R against official documentation to confirm package dimensions and tape-and-reel specifications. Ensure compatibility with existing PCB footprints and reflow soldering profiles. Confirm RoHS compliance status through manufacturer datasheets before integration into final assemblies.

Single Zener Diodes Selection Notes

Select this component when a precise 18V regulation point is required within a limited board space. The SOT-23 form factor suits high-density designs. Evaluate thermal management requirements based on the 350mW power dissipation limit and ambient operating conditions to ensure reliable long-term performance.

Single Zener Diodes Part Context

This part belongs to the BZX84 series of small-signal Zener diodes. It serves as a fundamental passive component for maintaining steady voltage levels in various consumer and industrial electronics. The series offers standardized electrical characteristics suitable for general-purpose design applications requiring reliable voltage clamping.

Single Zener Diodes Replacement Considerations

Consult official substitution guides for equivalent parts. Verify pinout compatibility and electrical parameter alignment before replacing.