1N5339B/TR12

Single Zener Diodes Overview

The Microsemi Corporation 1N5339B/TR12 is a silicon unidirectional Zener diode with a nominal voltage of 5.6 V and a power dissipation rating of 5 W at 25 °C. It features a ±5% tolerance indicated by the B suffix, housed in a T-18 axial lead plastic package. The device operates within a temperature range of -65 °C to +150 °C and includes a TR suffix denoting tape and reel packaging per EIA-296 standards.

Single Zener Diodes Feature Summary

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

Single Zener Diodes Applications

• Voltage regulation circuits requiring robust thermal performance
• Power supply protection against high surge stresses
• General-purpose voltage reference applications

Single Zener Diodes Procurement Notes

Verify that the part number suffix 'TR' corresponds to the required tape and reel packaging format specified in the datasheet. Confirm compliance with RoHS requirements if applicable, as standard versions may not be compliant. Ensure the ordering quantity matches the specific reel specifications provided by the manufacturer.

Single Zener Diodes Selection Notes

Select this component when a 5.6 V Zener voltage with ±5% tolerance is required. Consider the 5 W power dissipation capability and the T-18 package form factor for through-hole mounting. Evaluate thermal resistance characteristics and derating curves for high-current applications.

Single Zener Diodes Part Context

This component belongs to the JEDEC registered 1N5333-5388B series of 5.0 watt Zener diodes manufactured by Microsemi's Scottsdale Division. The series offers a wide selection of voltages from 3.3 to 200 volts with various tolerance options identified by specific suffix letters.

Single Zener Diodes Replacement Considerations

Surface mount equivalents are available as SMBJ5333 to SMBJ5388B or SMBG5333B to SMBG5388B. Military equivalent screening levels can be obtained by adding MQ, MX, or MV prefixes to the base part number.