1EZ200D/TR12

Overview

The Microsemi Corporation 1EZ200D/TR12 is a single Zener diode with a nominal voltage of 200 V and a maximum power dissipation of 1 W. It features a ±20% tolerance and utilizes a DO-204AL (DO-41) axial leaded plastic package for through-hole mounting. The device operates within a junction temperature range of -65°C to 150°C and has a forward voltage of 1.2 V at 200 mA. This component is classified as obsolete.

Feature Summary

• Provides stable voltage regulation across a wide operating current range
• Features hermetically sealed glass encapsulation for high reliability
• Supports operation at full power rating with adequate heat sinking

Applications

• Voltage regulation in electronic circuits
• Protection against overvoltage conditions
• Reference voltage sources in precision applications

Procurement Notes

Verify the obsolete status before procurement planning, as availability may be limited to stock or last-time buys. Confirm that the DO-204AL package dimensions match your PCB footprint requirements. Ensure thermal management strategies account for the 1 W power dissipation limit under worst-case operating conditions. Check for RoHS compliance if required by your manufacturing standards.

Selection Notes

Select this component when a 200 V Zener voltage with 1 W power handling is required in an axial leaded package. Consider the ±20% tolerance for applications where precise voltage clamping is not critical. Evaluate the glass encapsulation benefits for harsh environments compared to plastic alternatives. Verify that the operating temperature range meets your system's environmental specifications.

Part Context

This part belongs to the 1EZ series of silicon Zener diodes manufactured by Microsemi. The series offers various voltage ratings from 3.3 V to 200 V in a standard DO-41 plastic package. These diodes are designed for general-purpose voltage regulation and protection applications, providing reliable performance in both commercial and industrial settings.

Replacement Considerations

Check for direct replacements within the 1EZ series or equivalent JEDEC registered parts like the 1N59xx series. Verify pinout compatibility and power dissipation ratings. Consider upgrading to RoHS-compliant versions if environmental regulations require it.