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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：1.85 V @ 20 A
- Speed：Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr)：145 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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Overview
The BY229B-400-E3/45 is a high-speed silicon rectifier diode manufactured by Vishay General Semiconductor. It features a maximum average forward rectified current of 2.0 A and a repetitive peak reverse voltage of 400 V. The device utilizes a DO-201AD axial-leaded package, designed for efficient heat dissipation in power supply applications. Key electrical characteristics include a maximum RMS voltage of 280 V and a non-repetitive peak forward surge current capability of 60 A at 8.3 ms single half-sine-wave impulse. Operating temperatures range from -55 °C to +175 °C junction temperature.
Feature Summary
- High-speed recovery characteristics suitable for general-purpose rectification
- Robust construction with low forward voltage drop
- Axial-leaded package design for through-hole mounting
Applications
- General-purpose rectification in AC-DC converters
- Power supply circuits requiring fast switching
- Freewheeling diodes in inductive load protection
Procurement Notes
Verify the specific suffix E3/45 against official Vishay documentation to confirm lead-free status and tape-and-reel packaging specifications. Ensure the part number matches the exact voltage rating and package type required for your circuit design. Cross-reference with authorized distributors to confirm authenticity and traceability. Check for any recent obsolescence notices or alternative recommendations directly from the manufacturer's official channels before finalizing procurement decisions.
Selection Notes
Select this component when a 400 V reverse voltage rating and 2.0 A continuous current capacity are required. Consider the DO-201AD package size for board space constraints. Evaluate thermal management needs based on the specified junction temperature range. Compare recovery time specifications against other high-speed diodes if switching speed is critical. Ensure compatibility with existing PCB footprint designs utilizing axial leads.
Part Context
This diode belongs to Vishay's BY series of high-speed rectifiers, known for reliability in industrial and consumer electronics. The series offers various voltage ratings to suit different power supply requirements. The E3 designation indicates compliance with RoHS directives, ensuring environmental safety. The /45 suffix typically denotes specific packaging configurations such as tape and reel, facilitating automated assembly processes in manufacturing environments.
Replacement Considerations
Consult official Vishay substitution guides for direct equivalents. Verify that any replacement maintains identical voltage, current, and package specifications. Confirm compatibility with existing thermal and mechanical constraints. Ensure the substitute part meets the same regulatory standards and performance criteria documented in the original datasheet.
