1N4050

Single Diodes Overview

The Powerex Inc. 1N4050 is a single silicon power rectifier diode designed for high-current applications. It features a maximum DC reverse voltage (Vr) of 400 V and an average rectified current (Io) of 275 A. The device utilizes a chassis stud mount configuration within the DO-205AB (DO-9) package. It operates with a junction temperature range of -65°C to 190°C and exhibits a standard recovery speed greater than 500 ns. The component is RoHS3 compliant and classified under ECCN EAR99.

Single Diodes Feature Summary

• High current handling capability of 275 A average rectified output
• Robust chassis stud mount construction for efficient thermal management
• Wide operating junction temperature range extending to 190°C
• Standard recovery characteristics suitable for general-purpose rectification

Single Diodes Applications

• AC-to-DC conversion circuits in industrial environments
• Power supplies requiring high current rectification
• Inverter and converter systems in rough service conditions

Single Diodes Procurement Notes

Verify the specific voltage rating against system requirements, as the 1N4050 series includes variants with different peak reverse voltages. Confirm that the mounting hardware matches the DO-205AB stud specifications. Ensure thermal interface materials are compatible with the chassis mount design. Check for RoHS3 compliance if required by project standards. Validate lead times with the manufacturer or authorized distributors due to potential supply chain variability.

Single Diodes Selection Notes

Select this component when a robust, high-current rectifier is needed for chassis-mounted installations. The 400 V rating suits lower voltage AC inputs compared to higher-rated siblings like the 1N4055. Consider the thermal resistance and heatsinking requirements associated with the 275 A current load. Ensure the application does not require fast recovery speeds, as this is a standard recovery device.

Single Diodes Part Context

The 1N4050 belongs to the 1N40xx series of silicon power rectifiers manufactured by Powerex Inc. This series is widely recognized for reliability in heavy-duty power electronics. The part shares the same physical package and current rating as other members of the family but differs primarily in its peak inverse voltage specification. It serves as a fundamental building block for high-power industrial rectification tasks.

Single Diodes Replacement Considerations

Direct substitutes include other 1N405x series diodes from Powerex or equivalent manufacturers offering identical 275 A current and DO-205AB packaging. Verify that any replacement maintains the 400 V reverse voltage rating or exceeds it without compromising thermal performance. Cross-reference pinout and mounting dimensions to ensure mechanical compatibility.