BYV29B-400-E3/81

Description：DIODE STANDARD 400V 8A TO263AB
Series：-
Mfr：Vishay General Semiconductor - Diodes Division
Package：Tape & Reel (TR)

SKU:8b9daa53ad58 Category: Single Diodes Brand: Vishay General Semiconductor - Diodes Division

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Product introduction

Product Detailed Parameters

Description：DIODE STANDARD 400V 8A TO263AB
Series：-
Mfr：Vishay General Semiconductor - Diodes Division
Package：Tape & Reel (TR)
Technology：Standard
Voltage - DC Reverse (Vr) (Max)：400 V
Current - Average Rectified (Io)：8A
Voltage - Forward (Vf) (Max) @ If：1.25 V @ 8 A
Speed：Fast Recovery =< 500ns, > 200mA (Io)
Reverse Recovery Time (trr)：50 ns
Current - Reverse Leakage @ Vr：10 µA @ 400 V
Capacitance @ Vr, F：-
Mounting Type：Surface Mount
Package / Case：TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
Supplier Device Package：TO-263AB (D2PAK)
Operating Temperature - Junction：-40°C ~ 150°C
Grade：-
Qualification：-

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BYV29B-400-E3/81

Overview

The BYV29B-400-E3/81 is a silicon rectifier diode manufactured by Vishay General Semiconductor - Diodes Division. It belongs to the BYV29 series, characterized as an ultrafast recovery device with soft-recovery characteristics. The component features a maximum repetitive peak reverse voltage of 400 V and an average forward rectified current rating of 3 A. It utilizes a DO-201AD (DO-15) axial through-hole package. Key electrical parameters include a maximum non-repetitive peak forward surge current of 70 A and a junction temperature range from -65°C to +175°C.

Feature Summary

Ultrafast switching capability with low forward voltage drop for high efficiency.
Soft recovery characteristic designed to minimize electromagnetic interference during commutation.
High thermal cycling performance and low thermal resistance for robust operation.

Applications

High-frequency DC-to-DC converters
Free-wheeling rectification in power supplies
Snubber circuits requiring fast recovery

Procurement Notes

Verify the specific suffix E3/81 against official Vishay documentation to confirm lead-free compliance and tape-and-reel packaging specifications. Ensure the selected variant matches the required axial lead form factor and that the manufacturer's datasheet confirms the 400V rating for this exact part number before integration into designs.

Selection Notes

Select this component when designing circuits requiring ultrafast recovery times combined with soft-switching behavior to reduce voltage spikes. The 3A current rating and 400V blocking voltage make it suitable for medium-power applications. Verify that the TO-220AC or DO-201AD package constraints fit the mechanical layout requirements.

Part Context

This diode is part of the BYV29 series from Vishay, which focuses on ultrafast recovery technologies. The series is engineered for applications demanding low reverse recovery charge and minimal switching losses. The E3 designation typically indicates a lead-free finish compliant with RoHS directives, distinguishing it from older tin-lead variants.