2EZ3.9D5

Single Zener Diodes Overview

The Microsemi Corporation 2EZ3.9D5 is a single silicon Zener diode housed in a DO-41 plastic axial leaded package. It provides a nominal Zener voltage of 3.9V with a standard tolerance of plus or minus 5%. The device is rated for a maximum DC power dissipation of 2.0 watts and operates within a temperature range from -65°C to +175°C. It features an isolated case connection and complies with JEDEC-95 code DO-204AL standards.

Single Zener Diodes Feature Summary

• Provides precise voltage regulation at 3.9V with standard 5% tolerance
• Capable of operating at high maximum DC currents or full power rating with adequate heat sinking
• Plastic encapsulated construction ensures durability in various environments

Single Zener Diodes Applications

• Voltage regulation circuits requiring stable reference voltages
• Power supply protection against overvoltage conditions
• Clamping applications in electronic systems

Single Zener Diodes Procurement Notes

Verify the specific suffix 'D5' confirms the 5% tolerance level as documented. Confirm RoHS compliance status, as standard versions may differ from e3 variants. Ensure the DO-41 package matches the target PCB footprint requirements before procurement.

Single Zener Diodes Selection Notes

Select this component when a 3.9V reference is required with 2W power handling capability. Consider tighter tolerance prefixes like MQ or MX if precision exceeds 5%. Verify thermal management needs for continuous operation at full power ratings.

Single Zener Diodes Part Context

This part belongs to the 2EZ series of axial-leaded Zener diodes manufactured by Microsemi. The series covers a wide voltage range from 3.6V to 200V in the same DO-41 package, allowing for standardized inventory management across different voltage regulation designs.

Single Zener Diodes Replacement Considerations

Equivalent parts include other 3.9V 2W Zener diodes in DO-41 packages from manufacturers such as Vishay or ON Semiconductor, provided they meet the 5% tolerance and thermal specifications.