1EZ190DE3/TR12

Overview

The 1EZ190DE3/TR12 is a single Zener diode manufactured by Microsemi Corporation. It features a nominal Zener voltage of 190 V with a tolerance of ±20%. The device has a maximum power dissipation of 1 W and operates within a temperature range of -65°C to +150°C. Key electrical parameters include a reverse leakage current of 500 nA at 144.8 V, a forward voltage of 1.2 V at 200 mA, and a maximum impedance of 1700 Ohms. It utilizes a DO-204AL (DO-41) axial leaded package.

Feature Summary

• Provides voltage regulation in the 190 V range with standard ±20% tolerance
• Capable of operation across an extended industrial temperature range from -65°C to +150°C
• Utilizes a plastic encapsulated DO-41 axial leaded package for through-hole mounting

Applications

• Voltage regulation circuits requiring 190 V reference
• Overvoltage protection applications
• General purpose electronic equipment

Procurement Notes

Verify component status as this part may be discontinued or subject to end-of-life notices. Confirm RoHS compliance details, as suffix variations indicate different environmental standards. Ensure the specific ordering suffix matches the required tolerance and packaging format before procurement.

Selection Notes

Select this component when a 190 V Zener voltage with ±20% tolerance is required. Consider the 1 W power rating and thermal management needs for the application. Verify that the DO-41 package fits the design constraints and that the operating temperature range meets system requirements.

Part Context

This component belongs to the 1EZ series of silicon Zener diodes produced by Microsemi. These devices are designed for general-purpose voltage regulation and protection. The series offers various voltage options and tolerances within the DO-41 plastic package, catering to standard through-hole assembly processes.

Replacement Considerations

Check for direct equivalents within the 1EZ series or JEDEC registered counterparts such as the 1N53xx series if higher power ratings are acceptable. Verify pinout compatibility and ensure replacement parts meet the same voltage, power, and temperature specifications.