1EZ190D10/TR12

Overview

The Microsemi Corporation 1EZ190D10/TR12 is a single Zener diode with a nominal voltage of 190 V and a maximum power dissipation of 1 W. It features a ±10% tolerance and utilizes a DO-204AL (DO-41) axial leaded plastic package for through-hole mounting. The device operates within a temperature range of -65°C to 150°C, with a reverse leakage current of 500 nA at 144.8 V and a forward voltage of 1.2 V at 200 mA.

Feature Summary

• Provides stable voltage regulation across broad operating currents and temperature ranges
• Features flexible axial-lead terminals suitable for through-hole mounting applications
• Constructed with a plastic encapsulated body for standard industrial environments

Applications

• Voltage regulation in electronic circuits
• Protection against voltage transients
• Reference voltage sources in power supplies

Procurement Notes

Verify the specific suffix 'D10' indicates the required ±10% tolerance variant, as other suffixes denote different precision levels. Confirm the 'TR12' designation matches the intended reel packaging format for automated assembly processes. Ensure compatibility with existing thermal management strategies given the 1 W power rating.

Selection Notes

Select this component when a 190 V regulation point is required with moderate precision. Consider the DO-41 package size for board space constraints. Evaluate the 1 W power limit against peak load conditions to ensure adequate thermal headroom during continuous operation.

Part Context

This part belongs to the 1EZ series of silicon Zener diodes manufactured by Microsemi. The series offers various voltage options from 3.6 V to 200 V in the DO-41 plastic package. Different suffixes define the voltage tolerance, allowing designers to choose between standard and tighter specifications based on circuit requirements.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.