1N5386C/TR8

Overview

The Microsemi Corporation 1N5386C/TR8 is a silicon Zener diode with a nominal voltage of 180 V and a power dissipation rating of 5.0 W at 25 °C. It features a tight ±2% tolerance, indicated by the C suffix, and operates within a temperature range of -65 °C to +150 °C. The device utilizes a T-18 axial leaded plastic package and is supplied in tape and reel format per EIA-296 standards.

Feature Summary

• Provides precise voltage regulation over broad operating current and temperature ranges
• Withstands high surge stresses and offers minimal changes of voltage versus current
• Features flexible axial-lead mounting terminals for standard through-hole applications

Applications

• Voltage regulation circuits requiring stable reference voltages
• Power supply protection against transient voltage spikes
• Overvoltage clamping in electronic systems

Procurement Notes

Verify that the part number includes the TR8 suffix to confirm tape and reel packaging. Confirm the C suffix indicates the required ±2% tolerance. Ensure compliance with RoHS requirements if applicable, as standard versions may not be compliant.

Selection Notes

Select this component when a 180 V Zener diode with high precision is needed. The 5 W power rating supports high maximum DC currents with adequate heat sinking. Consider thermal resistance values for PCB layout planning.

Part Context

This part belongs to the JEDEC registered 1N5333B through 1N5388B series of 5.0 watt Zener diodes. The series covers a wide selection from 3.3 to 200 volts with various tolerances identified by specific suffix letters on the part number.

Replacement Considerations

Surface mount equivalents are available as SMBJ5333 to SMBJ5388B or SMBG5333B to SMBG5388B. RoHS compliant devices are available by adding the e3 suffix to the part number.