83CNQ080A

Overview

The Vishay VS-83CNQ080A is a center tap Schottky rectifier module featuring two 40 A legs for a total average forward current of 80 A. It has a maximum repetitive peak reverse voltage (VRRM) of 80 V and operates within a junction temperature range of -55 °C to +175 °C. The device utilizes the D-61-8 package with a common cathode configuration, offering a typical forward voltage drop of 0.67 V at 40 A and 125 °C. It supports a non-repetitive surge current of 7000 A and includes guard ring technology for enhanced ruggedness.

Feature Summary

• Center tap dual anode common cathode configuration optimized for low reverse leakage at high temperatures
• Proprietary barrier technology enabling reliable operation up to 175 °C junction temperature
• High purity epoxy encapsulation providing enhanced mechanical strength and moisture resistance
• Guard ring design incorporated for improved ruggedness and long-term reliability

Applications

• Switching power supplies
• Converters
• Freewheeling diodes
• Reverse battery protection

Procurement Notes

Verify the specific ordering suffix against the manufacturer's documentation to confirm the exact package style and packing quantity. The standard 'A' suffix indicates the D-61-8 through-hole package with a standard pack quantity of 10 pieces. Confirm lead-free status if required, as PbF variants exist for this package type. Ensure compatibility with recommended mounting hardware specifications.

Selection Notes

Select this component when a dual leg center tap configuration is required for high-frequency applications. The 80 A rating suits heavy-duty industrial environments. Evaluate thermal management requirements based on the 0.85 °C/W junction-to-case thermal resistance per leg. Consider the 175 °C operating limit for high-temperature designs compared to standard silicon rectifiers.

Part Context

This part belongs to the New Generation 3 D-61 Package series from Vishay High Power Products. It is designed specifically for industrial level qualification. The series includes variants with different voltage ratings, such as the 100 V version, sharing the same physical footprint and electrical characteristics except for the reverse voltage specification.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.

FAQ

What is the maximum non-repetitive surge current supported by the VS-83CNQ080A?

The device supports a maximum non-repetitive surge current of 7000 A for a 5 μs sine pulse or 3 μs rectangular pulse.

How is the thermal resistance specified for this module?

The maximum thermal resistance from junction to case is 0.85 °C/W per leg under DC operation, resulting in a total of 0.42 °C/W per package.

What mounting torque is recommended for the D-61-8 package?

The recommended mounting torque using 3M stainless screws is between 12 (10) kgf·cm and 24 (20) lbf·in.