1N5355B/TR8

Overview

The Microchip Technology 1N5355B/TR8 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, featuring a maximum reverse leakage current of 0.5 µA at 13 V and a dynamic impedance of 2.5 Ω. The component utilizes a T-18 axial lead package and includes a tape and reel option indicated by the TR suffix.

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 for through-hole integration

Applications

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

Procurement Notes

Verify the specific manufacturer origin, as the datasheet identifies Microsemi while other records list Microchip Technology. Confirm RoHS compliance status and check for discontinuation notices or product change notifications before finalizing procurement plans.

Selection Notes

Select this component for applications requiring robust 5-watt power dissipation and wide thermal stability. Ensure adequate heat sinking is provided to maintain performance within specified limits during steady-state operation.

Part Context

This device belongs to the JEDEC registered 1N5333B through 1N5388B series of axial-leaded Zener diodes. The series covers a voltage selection from 3.3 to 200 volts, offering various tolerance options identified by specific suffix letters on the part number.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.