1N5381A/TR8

Overview

The Microsemi Corporation 1N5381A/TR8 is a silicon Zener diode with a nominal voltage of 130 V and a tolerance of ±10%. It features a maximum power dissipation of 5.0 watts at 25°C, a test current of 10 mA, and a maximum dynamic impedance of 190 ohms. The device operates within a temperature range of -65°C to +150°C and utilizes a T-18 axial lead package.

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 integration

Applications

• Voltage regulation in electronic circuits
• High surge stress environments requiring robust protection
• Applications necessitating wide temperature operation capabilities

Procurement Notes

Verify the specific suffix 'TR8' indicates tape and reel packaging per EIA-296 standards. Confirm RoHS compliance status as standard parts may require an 'e3' suffix. Ensure the component meets moisture classification Level 1 requirements without dry pack constraints during storage and handling.

Selection Notes

Select this component when a 130 V reference with ±10% tolerance is required. Consider the 5-watt power rating and thermal resistance characteristics for adequate heat sinking. Verify that the T-18 package dimensions align with the target PCB layout and mounting constraints.

Part Context

This part belongs to the JEDEC registered 1N5333B through 1N5388B series of 5.0 watt Zener diodes. The series offers a voltage selection from 3.3 to 200 volts. Different tolerances are identified by specific suffix letters on the part number, such as 'A' for ±10%.

Replacement Considerations

Equivalent parts include other 130 V, 5 W Zener diodes in the T-18 package. Verify electrical parameters match the original specifications before substitution.