BY500-400-E3/73

Overview

The BY500-400-E3/73 is a soft recovery fast-switching plastic rectifier manufactured by Vishay General Semiconductor. It features a single silicon diode element in a DO-201AD molded epoxy package with matte tin-plated leads. The device supports a maximum average forward rectified current of 5.0 A and a maximum repetitive peak reverse voltage of 400 V. Key electrical characteristics include a peak forward surge current of 200 A, a maximum reverse recovery time of 200 ns, and a typical junction capacitance of 28 pF at 4.0 V.

Feature Summary

• Fast switching performance optimized for high efficiency applications
• Low forward voltage drop to minimize conduction losses
• High forward surge capability for robust operation under transient loads
• Soft recovery characteristics suitable for low RF interference environments

Applications

• Medium frequency rectification in switching mode power supplies
• Freewheeling diode circuits in speed controlled DC motors
• Inverter and converter systems
• TV scanning circuits
• Ultrasonic-systems

Procurement Notes

Verify the specific ordering suffix /73 corresponds to the required ammo pack packaging configuration rather than tape and reel formats. Confirm RoHS compliance status as indicated by the E3 suffix and ensure the component meets JESD 201 class 1A whisker test requirements for lead finish reliability before finalizing procurement specifications.

Selection Notes

Select this component when a 400 V blocking voltage rating is required alongside a 5 A continuous current capacity. Consider the 200 ns reverse recovery time for medium frequency operations where soft recovery characteristics are beneficial. Ensure the DO-201AD through-hole package aligns with the available board space and thermal management strategy involving the specified lead length.

Part Context

This part belongs to the BY500 series of soft recovery fast-switching plastic rectifiers from Vishay General Semiconductor. The series includes variants with different reverse voltage ratings ranging from 100 V to 800 V while maintaining consistent current and thermal characteristics. The BY500-400 variant specifically addresses applications requiring a 400 V breakdown threshold within this standardized product family.

Replacement Considerations

Direct substitutes within the same series include BY500-400-E3/54 for identical electrical performance but different packaging. Other voltage variants such as BY500-200 or BY500-600 may be considered if the circuit design allows for adjusted voltage margins.