1N5337E3/TR8

Single Zener Diodes Overview

The Microsemi Corporation 1N5337E3/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 temperatures from -65°C to +150°C, and a thermal resistance of 25°C/W junction-to-lead. The device utilizes a T-18 plastic axial-lead package, complies with RoHS standards via the e3 suffix, and is supplied in tape and reel format per EIA-296.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation across a broad range of operating currents and temperatures
• Withstands high surge stresses and exhibits minimal voltage change versus current variations
• Features flexible axial-lead mounting terminals for versatile integration

Single Zener Diodes Applications

• Voltage regulation circuits requiring 5W power handling
• High surge stress environments
• General purpose voltage reference applications

Single Zener Diodes Procurement Notes

Verify that the part number includes the 'e3' suffix to confirm RoHS compliance and lead finish specifications. Ensure the 'TR8' suffix matches the required tape and reel packaging configuration. Confirm the B suffix indicates the standard ±5% voltage tolerance. Cross-reference the manufacturer's latest datasheet for any updates on screening levels or mechanical dimensions before finalizing procurement orders.

Single Zener Diodes Selection Notes

Select this component when a 4.7 V Zener voltage with ±5% tolerance is required. The 5 W power rating supports high DC currents provided adequate heat sinking is implemented. The T-18 package offers low thermal resistance for efficient heat dissipation. Verify that the operating temperature range of -65°C to +150°C meets system environmental requirements.

Single Zener Diodes Part Context

This device belongs to the JEDEC registered 1N5333B through 1N5388B series of silicon 5-watt Zener diodes. The series provides voltage regulation options ranging from 3.3 V to 200 V. The 1N5337E3/TR8 specifically addresses the 4.7 V segment with standard tolerance, utilizing a plastic encapsulated axial-lead construction suitable for general industrial and commercial applications.

Single Zener Diodes Replacement Considerations

Equivalent parts within the 1N5333B-1N5388B series share identical mechanical and electrical characteristics. Other manufacturers producing JEDEC registered 1N5337 variants may serve as substitutes if they meet the 5 W power dissipation and 4.7 V ±5% tolerance specifications.