80CNQ035ASM

Overview

The Vishay VS-80CNQ035ASM is a center tap Schottky rectifier module featuring two independent legs with a common cathode configuration. It utilizes the D-61-8-SM through-hole package and supports a maximum DC reverse voltage of 35 V. The device provides a total average forward current rating of 80 A, distributed as 40 A per leg under rectangular waveform conditions at a case temperature of 114 °C. It operates reliably up to a junction temperature of 150 °C and exhibits a typical forward voltage drop of 0.47 V at 40 Apk and 125 °C.

Feature Summary

• Center tap dual anode common cathode configuration for efficient power conversion
• Proprietary barrier technology enabling reliable operation at elevated junction temperatures
• Guard ring structure designed to enhance ruggedness and long-term reliability
• High purity epoxy encapsulation providing enhanced mechanical strength and moisture resistance

Applications

• Switching power supplies
• DC-DC converters
• Freewheeling diodes in inductive circuits
• Reverse battery protection systems

Procurement Notes

Verify the specific suffix 'ASM' corresponds to the D-61-8-SM leaded package variant when sourcing. Confirm RoHS compliance status as the datasheet references PbF series designations. Validate thermal interface requirements against the specified maximum thermal resistance values for your mounting surface condition.

Selection Notes

Select this component for applications requiring high surge current handling and low forward voltage drop. Ensure the heatsinking design maintains the case temperature within limits defined by the maximum allowable case temperature curves. Consider the 5800 A non-repetitive surge capability for inductive load switching scenarios.

Part Context

This part belongs to the VS-80CNQ...A PbF Series, representing the New Generation 3 D-61 Package family from Vishay High Power Products. The series includes variants with different reverse voltage ratings (35 V, 40 V, 45 V) while maintaining identical current and thermal characteristics across the lineup.

Replacement Considerations

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

FAQ

What is the maximum non-repetitive surge current rating?

The device supports a peak one-cycle non-repetitive surge current of 5800 A per leg 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 and 0.42 °C/W per package under DC operation conditions.

What is the typical series inductance value?

The typical series inductance per leg is 5.5 nH, measured lead-to-lead at a distance of 5 mm from the package body.