BZX79-B68,143

Single Zener Diodes Overview

The BZX79-B68,143 is a voltage regulator diode from the Nexperia BZX79 series. It features a nominal Zener voltage of 68 V with a tight tolerance of ±2%. The device is housed in a hermetically sealed leaded glass SOD27 (DO-35) package and supports a total power dissipation of up to 500 mW. It operates within a temperature range of -65°C to +200°C and includes a non-repetitive peak reverse power dissipation rating of 40 W.

Single Zener Diodes Feature Summary

• Hermetically sealed leaded glass construction for environmental stability
• High thermal stability with an extended operating temperature range up to 200°C
• Tight voltage tolerance of ±2% for precise regulation applications

Single Zener Diodes Applications

• Low voltage stabilizers
• Voltage references
• Overvoltage protection circuits

Single Zener Diodes Procurement Notes

Verify the specific suffix '143' against official Nexperia documentation to confirm packaging details and availability status. Ensure the component meets AEC-Q101 requirements if automotive qualification is necessary for the target application environment.

Single Zener Diodes Selection Notes

Select this component when a stable 68 V reference is required in a through-hole glass package. The ±2% tolerance makes it suitable for precision analog circuits. Consider the 500 mW power limit and thermal management needs for high-current scenarios.

Single Zener Diodes Part Context

This part belongs to the BZX79 series of low-power voltage regulator diodes. The series offers various nominal working voltages from 2.4 to 75 V in the normalized E24 range. The 'B' designation indicates the tighter ±2% tolerance variant compared to the standard C series.

Single Zener Diodes Replacement Considerations

Check for equivalents in the BZX79-C68 series if ±5% tolerance is acceptable. Other manufacturers offering DO-35 packaged Zener diodes with 68 V nominal voltage and similar power ratings may serve as functional substitutes.