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Product Detailed Parameters
- Description：DIODE AVALANCHE 400V 2A SOD57
- Series：-
- Mfr：Vishay General Semiconductor - Diodes Division
- Package：Tape & Reel (TR)
- 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-TR is a single fast avalanche sinterglass diode manufactured by Vishay General Semiconductor - Diodes Division. It features a maximum DC reverse voltage (Vr) of 400 V and an average rectified current (Io) of 2 A. The device supports a maximum forward impulse current (Ifsm) of 50 A. It utilizes the SOD-57 through-hole package. Key electrical characteristics include controlled avalanche behavior, low reverse current, and hermetically sealed construction.
Feature Summary
- Controlled avalanche characteristics for robust performance under transient conditions
- Hermetically sealed glass passivated junction ensuring environmental stability
- High surge current loading capability with 50 A peak forward impulse rating
Applications
- General purpose rectification in power supplies
- Protection circuits requiring avalanche ruggedness
- Industrial equipment power stages
Procurement Notes
Verify the specific suffix against official Vishay documentation to confirm packaging details and tape-and-reel specifications. Ensure the component matches the required voltage and current ratings for the target circuit design. Cross-reference the manufacturer part number with authorized distributors to confirm authenticity and availability status before procurement.
Selection Notes
Select this component when a 400 V reverse voltage rating and 2 A continuous current capacity are required. Consider the SOD-57 through-hole package for assembly compatibility. Evaluate the controlled avalanche feature if the application involves inductive loads or potential voltage spikes that exceed standard breakdown limits without damaging the device.
Part Context
The BYW34 series belongs to Vishay's line of fast avalanche sinterglass diodes. These components are designed for general-purpose applications where reliability under high-stress conditions is critical. The TR suffix typically indicates a tape-and-reel packaging format suitable for automated assembly processes.
Replacement Considerations
Consult official Vishay substitution guides for verified equivalents. Generic replacements must match the 400 V Vr, 2 A Io, and SOD-57 package constraints. Verify avalanche characteristics and thermal resistance parameters before substituting.
