1EZ190D10E3/TR12

Overview

The Microsemi Corporation 1EZ190D10E3/TR12 is a single silicon Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 190 V with a tolerance of ±10%. The device has a maximum power dissipation rating of 1 W and utilizes the DO-204AL (DO-41) axial leaded plastic package. It operates within a junction and storage temperature range of -65°C to +150°C. The component is RoHS compliant, indicated by the e3 suffix, and is supplied in tape and reel packaging.

Feature Summary

• Provides stable voltage regulation at a nominal 190 V level
• Capable of handling up to 1 W of power dissipation
• Constructed with a rugged DO-204AL axial leaded plastic package
• Operates reliably across an extended temperature range from -65°C to +150°C

Applications

• Voltage reference circuits requiring high-voltage stability
• Overvoltage protection stages in electronic systems
• General-purpose voltage regulation tasks

Procurement Notes

Verify that the specific part number includes the 'e3' suffix to confirm RoHS compliance status. Confirm the 'TR12' designation matches the required tape and reel packaging format for automated assembly processes. Ensure the manufacturer is identified as Microsemi Corporation or its successor entity to guarantee authenticity and traceability of the component.

Selection Notes

Select this component when a 190 V Zener voltage with 10% tolerance is required. The 1 W power rating dictates thermal management considerations for the application. The DO-41 package suits through-hole mounting designs. Verify compatibility with operating temperatures up to 150°C and ensure the circuit design accommodates the specified leakage current characteristics.

Part Context

This component belongs to the Microsemi 1EZ series of single Zener diodes. These devices are characterized by their axial leaded construction and plastic encapsulation. The series offers various voltage options and tolerances, serving as fundamental discrete semiconductor components for voltage control and protection functions in diverse electronic environments.

Replacement Considerations

Direct substitutes include the 1EZ190D10 and 1EZ190D10E3 variants, which share identical electrical specifications and package dimensions. When replacing, verify that the alternative maintains the same 190 V nominal voltage, 10% tolerance, and 1 W power rating to ensure functional equivalence.