3EZ4.7D5/TR8

Single Zener Diodes Overview

The Microsemi Corporation 3EZ4.7D5/TR8 is a single Zener diode designed for through-hole mounting in the DO-204AL (DO-41) axial package. It features a nominal Zener voltage of 4.7 V with a tolerance of ±5% and a maximum power dissipation of 3 W. The device operates within a temperature range of -65°C to 150°C. Key electrical characteristics include a reverse leakage current of 5 µA at 7.2 V, a forward voltage of 1.2 V at 1 A, and a maximum impedance of 2 Ohms. This component is part of the 3EZ series.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation across a wide operating temperature range.
• Utilizes a plastic encapsulated axial leaded package for robust mechanical mounting.
• Offers high peak reverse power dissipation capabilities.

Single Zener Diodes Applications

• Voltage reference circuits requiring precise low-voltage regulation.
• Power supply protection against overvoltage transients.
• Clamping applications in signal processing paths.

Single Zener Diodes Procurement Notes

Verify component authenticity due to potential availability issues from discontinued status. Confirm RoHS compliance requirements as specific suffixes may vary. Check for valid EOL notifications and ensure replacement parts meet identical electrical specifications. Validate packaging type matches production needs before ordering.

Single Zener Diodes Selection Notes

Select this component when a 4.7 V regulation point is required with 3 W power handling. Ensure the DO-204AL package fits the PCB layout constraints. Consider thermal management strategies given the 150°C junction temperature limit. Verify that the ±5% tolerance aligns with circuit precision requirements.

Single Zener Diodes Part Context

This part belongs to the Microsemi 3EZ series of single Zener diodes. These devices are characterized by high reliability and are often used in industrial and military-grade applications. The series offers a broad voltage range, providing designers with flexible options for various regulation tasks within standard axial packages.

Single Zener Diodes Replacement Considerations

Check for equivalent parts from other manufacturers offering 4.7 V, 3 W, DO-204AL specifications. Ensure pinout compatibility and thermal resistance values match the original design constraints. Verify that any substitute meets the same environmental and quality standards.