R20440

Single Diodes Overview

The R20440 is a standard recovery rectifier manufactured by Microchip Technology, designed for high-power applications requiring robust performance. It features a maximum repetitive reverse voltage of 400 V and an average forward rectified current of 12 A. The device utilizes a DO-4 (DO-203AA) stud mount package, facilitating efficient thermal management in industrial environments. Key electrical characteristics include a forward voltage of 1.2 V at 30 A and a maximum reverse leakage current of 10 µA at 400 V. It operates within a junction temperature range of -65°C to +200°C and exhibits a standard recovery time exceeding 500 ns.

Single Diodes Feature Summary

• High-temperature operation capability with a junction temperature rating up to 200°C
• Stud mount construction for secure installation and effective heat dissipation
• Standard recovery characteristics suitable for general-purpose rectification

Single Diodes Applications

• Industrial power supply circuits
• Motor drive rectification systems
• General-purpose high-current DC conversion

Single Diodes Procurement Notes

Verify component authenticity through authorized Microchip distributors or certified suppliers. Confirm the specific manufacturing date code and lot traceability against the datasheet specifications. Ensure the DO-4 package integrity matches the required mounting torque and thermal interface guidelines. Check for RoHS compliance status as indicated in official documentation, noting this series may not meet all environmental directives.

Single Diodes Selection Notes

Select the R20440 when circuit requirements demand a 400 V blocking voltage and 12 A continuous current handling. Consider its 200°C junction temperature rating for high-thermal-stress environments where lower-rated devices would fail. The standard recovery profile makes it appropriate for non-switching or low-frequency AC-to-DC conversion tasks rather than high-speed switching applications.

Single Diodes Part Context

This component belongs to the R204 series of rectifiers from Microchip Technology, which offers various voltage ratings within the same physical DO-4 package family. The series provides standardized mechanical dimensions for easy replacement across different voltage classes while maintaining consistent thermal and current handling capabilities for industrial power electronics designs.

Single Diodes Replacement Considerations

Equivalent parts include other 400V 12A stud-mount diodes such as the S2040 or R204100 if voltage ratings allow adaptation. Verify pinout compatibility and thermal resistance values before substitution.