115CNQ015A

Overview

The Vishay VS-115CNQ015A is a center tap Schottky rectifier module featuring two independent legs with a common cathode configuration. It provides a maximum average forward current of 55 A per leg (110 A total) and a maximum DC reverse voltage rating of 15 V at 100 °C junction temperature. The device utilizes the D-61-8 package, designed for base mounting in high-power applications. Key electrical characteristics include an ultralow forward voltage drop of 0.37 V at 55 A and 25 °C, and a typical series inductance of 5.5 nH per leg.

Feature Summary

• Optimized for OR-ing applications with ultralow forward voltage drop to minimize power loss in parallel power supply configurations.
• Features proprietary barrier technology allowing reliable operation up to 125 °C junction temperature.
• Incorporates guard ring design for enhanced ruggedness and long-term reliability under industrial conditions.
• Utilizes high purity, high temperature epoxy encapsulation to provide mechanical strength and moisture resistance.

Applications

• Parallel switching power supplies
• Redundant power subsystems
• Reverse battery protection circuits

Procurement Notes

Verify component authenticity by checking markings against official datasheet specifications. Confirm package style matches requirements, as variants exist including standard D-61-8, surface mount D-61-8-SM, and low profile D-61-8-SL. Ensure thermal management solutions align with the specified thermal resistance values for the selected mounting configuration.

Selection Notes

Select this component when designing systems requiring high current handling with minimal forward voltage drop. The common cathode topology simplifies circuit layout for dual-input redundancy. Evaluate thermal performance based on the specific duty cycle and case temperature limits provided in the maximum allowable case temperature charts.

Part Context

This part belongs to the New Generation 3 D-61 Package series from Vishay High Power Products. It is specifically engineered for high-current industrial applications where efficiency and reliability are critical. The series includes variations in package footprint to accommodate different board space constraints while maintaining identical electrical performance characteristics.

Replacement Considerations

Direct replacements must match the 15 V reverse voltage rating and 55 A per leg current capacity. Verify that alternative components support the same common cathode configuration and operate within the -55 °C to 125 °C junction temperature range.

FAQ

What is the maximum non-repetitive surge current capability?

The device supports a peak one-cycle non-repetitive surge current of 5050 A per leg for a 5 μs sine pulse or 3 μs rectangular pulse following any rated load condition.

How does the forward voltage drop vary with temperature?

At 55 A, the forward voltage drop is 0.37 V at 25 °C junction temperature and decreases to 0.33 V at 75 °C junction temperature.

Is the component compliant with RoHS directives?

Yes, the PbF version is compliant with RoHS directive 2002/95/EC. Standard production versions with lead terminations are not RoHS compliant.