1N5357E3/TR8

Overview

The Microchip Technology 1N5357E3/TR8 is a silicon 5-watt Zener diode with a nominal voltage of 20V and ±5% tolerance. It operates within a temperature range of -65°C to +150°C, featuring a maximum reverse current of 0.5µA at 14.4V and a dynamic impedance of 3.0Ω. The component utilizes an axial-lead T-18 package and includes the e3 suffix for RoHS compliance.

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 suitable for through-hole applications

Applications

• Voltage regulation circuits requiring robust thermal performance
• Power supply protection against high surge stresses
• General-purpose electronic equipment utilizing standard axial leads

Procurement Notes

Verify that the ordering suffix 'e3' confirms RoHS compliance status as documented in official datasheets. Confirm the 'TR8' designation indicates tape and reel packaging per EIA-296 standards. Ensure the specific part number matches the required 20V rating and ±5% tolerance before procurement.

Selection Notes

Select this component when a 5-watt power dissipation capability is required for high-current regulation tasks. The wide operating temperature range supports demanding environments. Verify that the T-18 axial lead form factor aligns with the target printed circuit board layout and mechanical constraints.

Part Context

This device belongs to the JEDEC registered 1N5333B through 1N5388B series of silicon Zener diodes manufactured by Microsemi (now Microchip). The series offers a selection of voltages from 3.3V to 200V with various tolerance options identified by specific suffix letters on the part number.

Replacement Considerations

Compatible substitutes include other 1N5357 variants such as 1N5357B or 1N5357C, provided they meet the 20V specification and 5W power rating requirements.