1N5337B/TR8

Single Zener Diodes Overview

The Microsemi Corporation 1N5337B/TR8 is a silicon Zener diode with a nominal voltage of 4.7 V and a tolerance of ±5%. It features a maximum power dissipation of 5 W at 25°C, operating within a temperature range of -65°C to +150°C. The device utilizes an axial-lead T-18 plastic package and includes a TR suffix indicating 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 up to 180 watts for 8.3 ms duration
• Features flexible axial-lead mounting terminals in a void-free transfer molded epoxy body

Single Zener Diodes Applications

• Voltage regulation circuits requiring 4.7 V reference
• Power supply protection against overvoltage conditions
• Surge stress handling in electronic systems

Single Zener Diodes Procurement Notes

Verify the specific part number 1N5337B/TR8 matches the required 4.7 V Zener voltage and ±5% tolerance. Confirm the TR suffix indicates tape and reel packaging as specified by EIA-296 standards. Ensure the component meets the required thermal resistance and power dissipation ratings for the intended application environment.

Single Zener Diodes Selection Notes

Select this component when a 5 W axial-leaded Zener diode with a 4.7 V breakdown voltage is required. Consider the ±5% tolerance and the specific thermal characteristics for heat sinking requirements. Verify compatibility with the T-18 package dimensions and tape and reel handling if automated assembly is utilized.

Single Zener Diodes Part Context

This component belongs to the JEDEC registered 1N5333 through 1N5388B series of silicon 5-watt Zener diodes. The series offers a wide selection of voltages from 3.3 to 200 volts with various tolerance options identified by suffix letters. The 1N5337B specifically provides the 4.7 V option within this standardized lineup.

Single Zener Diodes Replacement Considerations

Equivalent parts include other manufacturers' 1N5337B variants such as those from Motorola or ON Semiconductor. Ensure replacement components match the 5 W power rating, 4.7 V Zener voltage, and T-18 package form factor.