BY550-400

Overview

The BY550-400 is a standard recovery rectifier manufactured by Diotec Semiconductor, housed in the DO-201 axial leaded package. It features a maximum repetitive peak reverse voltage of 400 V and an average forward rectified current rating of 5 A. The device exhibits a typical forward voltage drop of 1 V at 5 A and a maximum non-repetitive surge current capability of 400 A. Operating junction temperatures range from -50°C to +175°C, with a reverse leakage current of 5 µA at 400 V.

Feature Summary

• High thermal stability supporting operation up to 175°C
• Robust surge current handling for transient protection
• Low forward voltage drop for improved efficiency

Applications

• General-purpose rectification in power supplies
• Polarity protection circuits
• Battery charging systems

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to confirm exact electrical tolerances and packaging configurations. Ensure compliance with RoHS directives and REACH regulations as specified in the latest product documentation before finalizing procurement specifications.

Selection Notes

Select this component for applications requiring reliable standard recovery performance in through-hole designs. Consider the 5 A current rating and 400 V blocking voltage to ensure adequate margin for the target circuit's operational requirements and thermal management constraints.

Part Context

This part belongs to Diotec Semiconductor's general-purpose rectifier lineup, designed for robust performance in industrial and consumer electronics. The DO-201 package provides mechanical durability suitable for automated assembly processes while maintaining high thermal dissipation capabilities for continuous operation.

Replacement Considerations

Cross-reference with other DO-201 packaged 5 A / 400 V rectifiers from qualified manufacturers. Verify pinout compatibility and thermal characteristics to ensure seamless integration without redesigning the printed circuit board layout.