1N5342B

Single Zener Diodes Overview

The Microsemi Corporation 1N5342B is a silicon Zener diode with a nominal voltage of 6.8 V and a tolerance of ±5%. It features a maximum power dissipation of 5.0 watts at 25°C, a test current of 175 mA, and a maximum dynamic impedance of 1.0 ohm. The device operates within a temperature range of -65°C to +150°C and utilizes a T-18 axial lead package.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation across a broad operating current and temperature range
• Withstands high surge stresses and exhibits minimal changes in voltage versus current
• Features flexible axial-lead mounting terminals for versatile installation

Single Zener Diodes Applications

• Voltage regulation circuits requiring 5-watt power handling
• Power supply protection against overvoltage conditions
• Reference voltage generation in electronic systems

Single Zener Diodes Procurement Notes

Verify the specific suffix (e.g., e3) to confirm RoHS compliance status, as standard versions may contain lead. Confirm that the required screening level matches the base JEDEC registration or specified military equivalent prefixes if applicable. Ensure thermal management aligns with the 25°C/W junction-to-lead rating for optimal performance.

Single Zener Diodes Selection Notes

Select this component when a 6.8 V reference with ±5% accuracy is required. Consider the 5-watt power rating and T-18 package dimensions for physical constraints. Evaluate thermal resistance requirements based on the intended mounting method, whether direct lead attachment or FR4 PCB mounting, to ensure operation within the specified temperature limits.

Single Zener Diodes Part Context

This part belongs to the JEDEC registered 1N5333B through 1N5388B series of 5-watt Zener diodes. The series offers a wide selection of voltages from 3.3V to 200V. The 'B' suffix specifically denotes a standard voltage tolerance of plus/minus 5%, distinguishing it from other tolerance options available in the family.

Single Zener Diodes Replacement Considerations

Surface mount equivalents are available as SMBJ5342B or SMBG5342B. Verify pinout compatibility and thermal characteristics when transitioning between axial and surface mount packages.