1N5355BE3/TR12

Overview

The Microchip Technology 1N5355BE3/TR12 is a silicon 5-watt Zener diode with an 18 V nominal voltage and ±5% tolerance. It operates within a temperature range of -65°C to +150°C, features a T-18 axial lead package, and includes a TR suffix for tape and reel packaging.

Feature Summary

• Provides stable voltage regulation across a broad operating current and temperature range
• Withstands high surge stresses and exhibits minimal voltage change versus current
• Features flexible axial-lead mounting terminals suitable for through-hole applications

Applications

• Voltage regulation in power supply circuits
• Overvoltage protection for sensitive electronic components
• Reference voltage generation in measurement systems

Procurement Notes

Verify the RoHS compliant e3 suffix and TR tape-and-reel designation against official datasheets. Confirm that the component matches the JEDEC registered 1N5355B specifications before integration into designs requiring specific environmental compliance standards.

Selection Notes

Select this component when a 5-watt power rating and 18 V regulation are required. Ensure adequate heat sinking is provided to maintain performance within the specified thermal resistance limits during continuous operation.

Part Context

This device belongs to the 1N5333B through 1N5388B series of JEDEC registered silicon Zener diodes manufactured by Microsemi (now Microchip Technology). The series offers a wide selection of voltages from 3.3 V to 200 V in a robust plastic encapsulated T-18 package.

Replacement Considerations

Compatible substitutes include the 1N5355B and MSP1N5355TR. Verify that replacement parts match the 18 V Zener voltage, 5 W power dissipation, and T-18 axial lead package dimensions.