1EZ200D2E3/TR12

Overview

The Microsemi Corporation 1EZ200D2E3/TR12 is a single silicon Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 200V with a tight tolerance of ±2%. The device is rated for a maximum power dissipation of 1W and operates within an extended temperature range from -65°C to +150°C. Housed in a DO-204AL (DO-41) axial-leaded plastic package, it offers a low reverse leakage current of 500nA at 152V and a dynamic impedance of 900 Ohms. This component is RoHS compliant and suitable for high-reliability environments.

Feature Summary

• Provides precise voltage regulation with a 2% tolerance on the 200V nominal rating
• Operates reliably across a wide industrial temperature range up to 150°C
• Constructed with a glass passivated junction for enhanced stability
• Available in a standard axial-leaded package for through-hole mounting

Applications

• Precision voltage reference circuits requiring stable high-voltage regulation
• Overvoltage protection stages in sensitive electronic equipment
• Clamping applications in high-voltage signal processing paths
• Power supply output regulation and feedback networks

Procurement Notes

Verify the specific suffix D2 indicates the 2% tolerance variant when sourcing replacements. Confirm RoHS compliance status as manufacturing processes may evolve. Check for active production status or last-time buy notices due to potential lifecycle changes. Ensure the DO-204AL package dimensions match the target PCB footprint constraints before finalizing procurement decisions.

Selection Notes

Select this component when a 200V regulation point with strict 2% accuracy is required. The 1W power rating supports moderate current loads without excessive heat sinking. Consider the 900 Ohm dynamic impedance for noise-sensitive designs. The axial lead format simplifies manual assembly and prototyping compared to surface-mount alternatives.

Part Context

This part belongs to the Microsemi 1EZ series of axial-leaded Zener diodes. The series covers various voltage ratings from 110V to 200V with different tolerance options. The 'D2' suffix specifically denotes the 2% tolerance grade, distinguishing it from standard 10% or 5% variants. The 'E3' suffix confirms lead finish and material compliance.

Replacement Considerations

• 1EZ200DE3/TR12
• 1EZ200D1TR

FAQ

What is the dynamic impedance of the 1EZ200D2E3/TR12?

The maximum dynamic impedance (Zzt) is specified as 900 Ohms.

Does this diode support high-temperature operation?

Yes, it is rated for a maximum operating junction temperature of 150°C.

What does the 'D2' suffix signify in the part number?

The 'D2' suffix indicates a Zener voltage tolerance of ±2%.