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Product Detailed Parameters
- Description：DIODE AVALANCHE 400V 2A SOD57
- Series：-
- Mfr：Vishay General Semiconductor - Diodes Division
- Package：Cut Tape (CT),Tape & Box (TB)
- Technology：Avalanche
- Voltage - DC Reverse (Vr) (Max)：400 V
- Current - Average Rectified (Io)：2A
- Voltage - Forward (Vf) (Max) @ If：1.1 V @ 1 A
- Speed：Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr)：200 ns
- Current - Reverse Leakage @ Vr：5 µA @ 400 V
- Capacitance @ Vr, F：-
- Mounting Type：Through Hole
- Package / Case：SOD-57, Axial
- Supplier Device Package：SOD-57
- Operating Temperature - Junction：-55°C ~ 175°C
- Grade：-
- Qualification：-
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Overview
The BYW34-TAP is a fast avalanche sinterglass diode manufactured by Vishay General Semiconductor - Diodes Division. It features a maximum repetitive peak reverse voltage of 400 V and an average forward rectified current rating of 2 A. The device is housed in the SOD-57 through-hole package. Key electrical characteristics include a maximum non-repetitive peak surge current of 50 A and a maximum forward voltage drop of 1.1 V at the rated current.
Feature Summary
- Fast avalanche capability for robust operation under transient conditions
- Sinterglass construction for high thermal stability
- Through-hole mounting configuration
Applications
- Flyback diodes in inductive load switching circuits
- Clamping applications in power supply designs
- Protection against voltage spikes in DC circuits
Procurement Notes
Verify the specific suffix 'TAP' corresponds to the required tape-and-reel packaging format, as standard variants may differ. Confirm RoHS compliance status with the manufacturer's latest documentation before integration. Ensure the SOD-57 footprint matches the target PCB layout dimensions precisely.
Selection Notes
Select this component when a 400 V blocking voltage and 2 A continuous current capacity are required in a compact through-hole form factor. The fast avalanche characteristic makes it suitable for environments with significant inductive kickback. Compare thermal resistance values against alternative packages if space constraints allow for larger footprints.
Part Context
This part belongs to Vishay's discrete semiconductor diode portfolio, specifically within the fast recovery and avalanche-rated categories. The BYW34 series utilizes sinterglass technology to enhance reliability compared to standard glass-passivated devices. It serves as a specialized solution for protecting sensitive components from reverse voltage transients.
Replacement Considerations
Cross-reference with other Vishay avalanche diodes in the SOD-57 package that meet or exceed the 400 V and 2 A ratings. Verify pinout compatibility and thermal performance metrics before substituting.
