1N5355E3/TR8

Overview

The Microchip Technology 1N5355E3/TR8 is a silicon Zener diode with a nominal voltage of 18V and a power dissipation rating of 5.0 watts at 25°C. It features a T-18 axial leaded plastic package and meets RoHS standards, indicated by the e3 suffix. The device provides a standard ±5% voltage tolerance and operates within a temperature range of -65°C to +150°C. Packaged in tape and reel format per EIA-296 standards, it offers low thermal resistance for high DC current operation.

Feature Summary

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

Applications

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

Procurement Notes

Verify that the component matches the specific JEDEC registered series designation and confirms compliance with RoHS directives via the e3 suffix. Ensure the tape and reel packaging aligns with automated assembly requirements. Confirm the manufacturer origin as Microsemi or its successor entity to guarantee authenticity and traceability of the electronic component.

Selection Notes

Select this component when a 5-watt axial Zener diode with an 18V nominal breakdown is required. The B suffix indicates a standard 5% tolerance suitable for general regulation tasks. Consider the T-18 package dimensions and thermal characteristics for adequate heat sinking during high-current steady-state operations.

Part Context

This part belongs to the 1N5333B through 1N5388B series of silicon 5-watt Zener diodes manufactured by Microsemi's Scottsdale Division. The series covers a wide voltage selection from 3.3V to 200V. The 1N5355 variant specifically targets the 18V regulation segment within this extensive lineup of plastic encapsulated devices.

Replacement Considerations

Equivalent parts include the non-RoHS 1N5355B and other variants within the 1N5333-5388 series sharing the same power and package specifications.