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Product Detailed Parameters
- Description：DIODE AVALANCHE 800V 1.25A SOD57
- Series：-
- Mfr：Vishay General Semiconductor - Diodes Division
- Package：Tape & Reel (TR)
- Technology：Avalanche
- Voltage - DC Reverse (Vr) (Max)：800 V
- Current - Average Rectified (Io)：1.25A
- Voltage - Forward (Vf) (Max) @ If：1.5 V @ 1 A
- Speed：Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr)：100 ns
- Current - Reverse Leakage @ Vr：5 µA @ 800 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 BYT54K-TR is a fast recovery rectifier diode manufactured by Vishay Semiconductors. It features an 800V reverse voltage rating and supports a continuous forward current of 1.25A. The device utilizes the SOD-57 through-hole package. Key electrical parameters include a maximum forward voltage of 1.5V, a reverse leakage current of 5µA, and a typical reverse recovery time of 100ns. It withstands a surge current of 30A and operates within a temperature range of -55°C to +175°C.
Feature Summary
- Engineered for high-voltage rectification with avalanche capability
- Fast recovery characteristics suitable for switching applications
- Robust thermal performance across extended temperature ranges
Applications
- High-voltage power supply circuits
- General-purpose rectification in industrial equipment
- Protection circuits requiring avalanche ruggedness
Procurement Notes
Verify the specific suffix 'K' against official Vishay documentation to confirm it denotes the 800V variant rather than other voltage ratings within the BYT54 series. Ensure the SOD-57 package dimensions match your PCB footprint requirements. Confirm RoHS compliance status directly from the manufacturer's latest datasheet before integration.
Selection Notes
Select this component when an 800V blocking voltage is required alongside fast recovery times. The SOD-57 package offers a compact solution for through-hole designs. Compare the 1.25A current rating against circuit load demands. Consider the 100ns recovery time for efficiency in high-frequency switching environments compared to standard rectifiers.
Part Context
This part belongs to the BYT54 series of fast recovery rectifiers from Vishay. The series includes various voltage ratings, such as 50V and 800V variants. The 'K' suffix typically distinguishes the higher voltage rating within the product line. These diodes are designed for general-purpose use in demanding electronic applications.
Replacement Considerations
Check for direct substitutes like the BYT54M or other Vishay 800V fast recovery diodes in the SOD-57 package. Verify pinout compatibility and ensure equivalent electrical specifications for voltage, current, and recovery time before substitution.
