1N5386/TR12

Overview

The Microsemi Corporation 1N5386/TR12 is a silicon Zener diode with a nominal voltage of 180V and a tolerance of ±20%. It features a maximum power dissipation of 5.0 watts at 25°C, operating within a temperature range of -65°C to +150°C. The device utilizes a T-18 axial lead package and includes a TR suffix indicating tape and reel packaging per EIA-296 standards.

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 for through-hole applications

Applications

• Voltage regulation circuits requiring high power handling
• Surge protection systems designed to withstand high stress events
• Power supply designs utilizing adequate heat sinking for thermal management

Procurement Notes

Verify the specific suffix configuration against official datasheets to confirm tolerance levels and packaging options. Ensure that the selected variant meets the required JEDEC registration standards and environmental compliance specifications for the intended application environment.

Selection Notes

Select this component when a 5-watt power rating and an 180V breakdown voltage are required. Consider the thermal resistance characteristics and ensure adequate heat sinking is implemented to maintain operation within the specified junction-to-lead thermal limits during steady-state conditions.

Part Context

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

Replacement Considerations

Surface mount equivalents are available as SMBJ5333 to SMBJ5388B or SMBG5333B to SMBG5388B.