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Product Detailed Parameters
- Description：DIODE AVALANCHE 800V 3A SOD64
- Series：-
- Mfr：Vishay General Semiconductor - Diodes Division
- Package：Tape & Box (TB)
- Technology：Avalanche
- Voltage - DC Reverse (Vr) (Max)：800 V
- Current - Average Rectified (Io)：3A
- Voltage - Forward (Vf) (Max) @ If：1.9 V @ 3 A
- Speed：Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr)：60 ns
- Current - Reverse Leakage @ Vr：1 µA @ 800 V
- Capacitance @ Vr, F：-
- Mounting Type：Through Hole
- Package / Case：SOD-64, Axial
- Supplier Device Package：SOD-64
- Operating Temperature - Junction：-55°C ~ 175°C
- Grade：-
- Qualification：-
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Overview
The BYW178-TAP is a fast avalanche sinterglass diode manufactured by Vishay General Semiconductor - Diodes Division. It features an SOD-64 package with axial leads for through-hole mounting. The device has a maximum repetitive peak reverse voltage of 800 V and supports an average forward current of 3 A. Key electrical characteristics include a maximum reverse current of 1 μA at 25 °C, a maximum forward voltage of 1.9 V at 3 A, and a typical reverse recovery time of 50 ns under specified test conditions.
Feature Summary
- Glass passivated junction
- Hermetically sealed package
- Soft recovery characteristics
Applications
- Ultrafast rectification diode for switching mode power supplies
Procurement Notes
Verify the specific ordering code BYW178-TAP to confirm the ammopack packaging format containing 2500 units per pack. Ensure that the required minimum order quantity aligns with your project needs. Confirm technical specifications against the official datasheet document number 86047 before finalizing procurement decisions.
Selection Notes
Select this component when high-voltage blocking capability up to 800 V is required alongside moderate current handling of 3 A. The soft recovery characteristics make it suitable for applications where minimizing electromagnetic interference during switching transitions is critical. Verify thermal management requirements based on the specified junction-to-ambient thermal resistance values.
Part Context
This part belongs to the BYW178 series of fast avalanche sinterglass diodes from Vishay. These components are designed for high-reliability applications requiring robust performance under high-voltage stress. The series utilizes a glass-passivated junction technology to ensure stable operation across the specified temperature range.
Replacement Considerations
No public confirmed substitute part numbers are available in the provided documentation.
FAQ
What is the maximum non-repetitive reverse avalanche energy rating?
The maximum non-repetitive reverse avalanche energy (E_R) is rated at 20 mJ when tested with a repetitive peak reverse current of 1 A.
How is the cathode polarity identified on the SOD-64 package?
The cathode end is denoted by a color band on the hermetically sealed glass case.
