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Product Detailed Parameters
- Description：DIODE STANDARD 400V 8A TO263AB
- Series：-
- Mfr：Vishay General Semiconductor - Diodes Division
- Package：Tube
- 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：Automotive
- Qualification：AEC-Q101
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Overview
The BYV29B-400HE3_A/P is a single ultrafast rectifier diode manufactured by Vishay General Semiconductor. It features a maximum repetitive peak reverse voltage of 400 V and an average forward rectified current of 8 A. The device utilizes a TO-263AB (D2PAK) surface-mount package, designed for high-efficiency power conversion applications requiring fast recovery characteristics.
Feature Summary
- Ultrafast soft recovery characteristic for reduced switching losses
- High thermal stability in D2PAK surface-mount package
- Designed for high-frequency power supply applications
Applications
- High-frequency DC/DC converters
- Free-wheeling rectification in switch-mode power supplies
- Output rectification in isolated flyback topologies
Procurement Notes
Verify the specific suffix _A/P against the official Vishay datasheet to confirm pinout and packaging details. Ensure the component meets RoHS compliance requirements for your assembly process. Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit components. Confirm automotive or industrial grade specifications if required by the design.
Selection Notes
Select this component when an 8 A current rating and 400 V blocking voltage are required in a surface-mount form factor. The ultrafast recovery time makes it suitable for frequencies exceeding standard rectifier capabilities. Compare thermal resistance values in the datasheet against the PCB copper area available for heat dissipation in the final enclosure design.
Part Context
This part belongs to the BYV29 series of ultrafast rectifiers from Vishay. The series offers various voltage ratings while maintaining consistent current handling and package dimensions. The HE3 designation indicates Halogen-Free and Green Product status, aligning with environmental regulations for modern electronic manufacturing.
Replacement Considerations
Check for direct replacements within the BYV29 series with different voltage ratings if system constraints change. Verify that any substitute maintains the same D2PAK footprint and pin configuration to ensure mechanical compatibility without PCB redesign.
