1N5339B/TR8

Single Zener Diodes Overview

The Microsemi Corporation 1N5339B/TR8 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 changes in voltage versus current
• Features flexible axial-lead mounting terminals for versatile integration

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. Confirm compliance with specific moisture classification requirements, noting Level 1 status without dry pack necessity. Ensure the ordering documentation explicitly references the JEDEC registered series data for electrical characteristics validation.

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 low thermal resistance design for applications needing high maximum DC currents with adequate heat sinking. Verify that the T-18 axial lead package fits the mechanical constraints of the target circuit board layout.

Single Zener Diodes Part Context

This device belongs to the 1N5333-5388B JEDEC registered 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 on the part number.

Single Zener Diodes Replacement Considerations

Surface mount equivalents are available as SMBJ5333 to SMBJ5388B or SMBG5333B to SMBG5388B. RoHS compliant devices can be sourced by adding the e3 suffix to the base part number.