1EZ190D5/TR8

Overview

The Microsemi Corporation 1EZ190D5/TR8 is a single silicon Zener diode housed in the DO-204AL (DO-41) axial through-hole package. It provides a nominal Zener voltage of 190 V with a tolerance of ±5%. The device supports a maximum power dissipation of 1 W and operates within a temperature range of -65°C to +150°C. Electrical characteristics include a forward voltage of 1.2 V at 200 mA and a reverse leakage current of 500 nA at 144.8 V. The component has a moisture sensitivity level of 1.

Feature Summary

• Provides stable voltage regulation for sensitive electronic circuits
• Capable of operation under high DC currents or full power ratings with adequate heat sinking
• Features Level 1 moisture classification requiring no dry pack storage

Applications

• Voltage regulation in power supply circuits
• Protection of voltage-sensitive devices from transients
• Reference voltage generation in analog applications

Procurement Notes

Verify the exact suffix against official Microsemi documentation, as the provided model includes a 'D5' designation not explicitly detailed in available public records. Confirm RoHS compliance status and lead-free availability directly with the manufacturer or authorized distributors, as standard variants may differ. Ensure the procurement channel is authorized to guarantee authenticity and traceability.

Selection Notes

Select this component when a precise 190 V regulation point is required in a standard axial package. Consider the ±5% tolerance for applications allowing moderate voltage variance. Evaluate thermal management requirements for continuous 1 W dissipation. Verify that the operating temperature range meets the environmental conditions of the target system.

Part Context

This part belongs to the Microsemi 1EZ series of 1 Watt Zener diodes. The series offers various voltage selections in the DO-41 plastic package. Variations in the suffix typically indicate specific tolerance levels or screening standards. This family is designed for general-purpose voltage regulation tasks.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Consult Microsemi technical support for verified equivalents.