SDUR1040

Single Diodes Overview

The SDUR1040 is a single standard recovery diode manufactured by SMC Diode Solutions, designed for surface-mount and through-hole applications. It features a maximum DC reverse voltage (Vr) of 400 V and an average rectified current (Io) of 10 A. The device exhibits a typical forward voltage (Vf) of 1.2 V at 10 A and a reverse leakage current of 10 µA at 400 V. With a fast recovery time (trr) of 45 ns, it operates within a junction temperature range of -55°C to 150°C. Available in TO-220AC packages, this component supports high-frequency switching requirements.

Single Diodes Feature Summary

• Fast recovery characteristics with a 45 ns reverse recovery time for efficient switching
• High thermal stability supporting junction temperatures up to 150°C
• Robust 400 V reverse voltage rating suitable for general-purpose rectification

Single Diodes Applications

• General-purpose rectification in power supply circuits
• Freewheeling diodes in inductive load protection
• DC-DC converter output stages

Single Diodes Procurement Notes

Verify the specific package variant during procurement, as the SDUR1040 designation may correspond to different physical footprints such as TO-220AC depending on the manufacturer's suffix or distributor listing. Confirm RoHS compliance status and ensure the selected component matches the required thermal and electrical specifications for the target application environment before finalizing orders.

Single Diodes Selection Notes

Select the SDUR1040 when a 400 V blocking capability and 10 A continuous current handling are required. Its 45 ns recovery time makes it suitable for frequencies exceeding standard slow-recovery limits. Ensure the chosen package variant aligns with the PCB layout constraints and thermal management strategy of the design.

Single Diodes Part Context

This component belongs to the SDUR series of standard recovery diodes from SMC Diode Solutions. The series offers various voltage and current ratings packaged in both through-hole and surface-mount formats. The SDUR1040 specifically targets applications needing moderate speed recovery and high current capacity in a robust leaded package.

Single Diodes Replacement Considerations

SDUR1040CT serves as a potential alternative if a common cathode array configuration is acceptable, though pinout differences must be verified. Direct pin-to-pin replacements should be sourced only after confirming identical Vr, Io, and trr specifications.