BZX79-B18,143

Single Zener Diodes Overview

The Nexperia BZX79-B18,143 is a single voltage regulator diode from the BZX79 series, housed in a hermetically sealed SOD-27 (DO-35) leaded glass package. It features a nominal Zener voltage of 18 V with a tight tolerance of ±2%. The device supports a maximum power dissipation of 500 mW and operates within an extended temperature range of -65°C to +200°C. Designed for through-hole mounting, it provides stable voltage regulation for low-power applications.

Single Zener Diodes Feature Summary

• Hermetically sealed leaded glass construction ensures long-term reliability
• Tight ±2% voltage tolerance for precise reference applications
• Extended operating temperature range up to 200°C

Single Zener Diodes Applications

• Low voltage stabilizers
• Voltage references
• General regulation functions

Single Zener Diodes Procurement Notes

Verify the specific suffix against official Nexperia documentation to confirm exact tolerance and packaging details. Ensure the procurement channel sources directly from authorized distributors to guarantee component authenticity and traceability. Cross-reference the part number with current datasheets to validate compliance with RoHS standards before finalizing orders.

Single Zener Diodes Selection Notes

Select this component when a stable 18 V reference is required in through-hole designs. The ±2% tolerance makes it suitable for precision circuits where standard 5% variants are insufficient. Consider the 500 mW power rating and thermal management requirements for the specific application environment.

Single Zener Diodes Part Context

This part belongs to the BZX79 series of low-power voltage regulator diodes manufactured by Nexperia USA Inc. The series offers a wide range of nominal working voltages from 2.4 V to 75 V in normalized E24 values. The BZX79-B variant specifically denotes the tighter ±2% tolerance series compared to the standard ±5% options.

Single Zener Diodes Replacement Considerations

Compatible substitutes include other BZX79-B18 variants from different manufacturers or equivalent 18 V Zener diodes in DO-35 packages with matching ±2% tolerance and 500 mW power ratings.