1N5387A/TR8

Overview

The Microsemi Corporation 1N5387A/TR8 is a silicon Zener diode with a nominal voltage of 190V and a tolerance of ±10%. It features a maximum power dissipation of 5W at 25°C, housed in a T-18 axial leaded plastic package. The device operates within a temperature range of -65°C to +150°C and includes a TR suffix indicating 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 changes in voltage versus current
• Features flexible axial-lead mounting terminals for versatile integration

Applications

• Voltage regulation in electronic circuits
• High surge stress environments
• Broad operating current applications

Procurement Notes

Verify the specific ordering suffixes against official documentation to confirm exact electrical tolerances and packaging configurations. Ensure compatibility with required thermal management solutions, as steady-state power dissipation depends on adequate heat sinking and lead length during installation.

Selection Notes

Select this component when a 190V Zener reference with ±10% tolerance is required. Consider the 5W power rating and T-18 package dimensions for physical constraints. Verify that the operating environment falls within the specified -65°C to +150°C temperature range for reliable performance.

Part Context

This part belongs to the JEDEC registered 1N5333B through 1N5388B series of 5.0-watt silicon Zener diodes. The series offers a wide selection of voltages from 3.3V to 200V, utilizing different suffix letters to identify specific voltage tolerances such as A for ±10% or B for ±5%.

Replacement Considerations

Consult official datasheets for equivalent parts within the same series or other manufacturers offering identical 5W axial-leaded specifications. Verify matching voltage ratings, tolerance levels, and package dimensions before substitution.