110CNQ045A

Overview

The Vishay VS-110CNQ045A 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 repetitive peak reverse voltage of 45 V. The device utilizes the D-61-8 through-hole package, enabling operation up to a junction temperature of 150 °C. Key electrical characteristics include a typical forward voltage drop of 0.5 V at 55 Apk and a non-repetitive surge current rating of 5400 A.

Feature Summary

• Center tap module design optimized for very low forward voltage drop and moderate leakage current
• Proprietary barrier technology ensures reliable operation up to 150 °C junction temperature
• High purity, high temperature epoxy encapsulation provides enhanced mechanical strength and moisture resistance
• Guard ring structure included for enhanced ruggedness and long-term reliability

Applications

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

Procurement Notes

Verify the specific package suffix against the ordering information table: 'A' denotes the standard D-61-8 case style, while 'ASM' indicates the D-61-8-SM variant and 'ASL' indicates the D-61-8-SL variant. Confirm RoHS compliance status, as terminations may be lead-containing depending on the specific suffix ordered. Ensure thermal management aligns with the specified junction-to-case thermal resistance values provided in the datasheet.

Selection Notes

Select this component for applications requiring high-frequency operation and robust surge handling capabilities. The device supports a maximum voltage rate of change of 10,000 V/µs and offers a typical series inductance of 5.5 nH per leg. Designers must account for the thermal resistance of 0.5 °C/W per leg when calculating heat dissipation requirements under continuous DC or square wave operating conditions.

Part Context

This part belongs to the Vishay High Power Products Schottky Rectifier series, specifically utilizing the New Generation 3 D-61 package family. The product line is designed to address the need for moderate leakage currents combined with low forward voltage drops in high-current applications. The 110CNQ045A represents the 45 V voltage rating within this specific current-rated segment of the portfolio.

Replacement Considerations

Datasheet documentation does not list confirmed substitute part numbers. Verify compatibility with alternative components by matching the 45 V reverse voltage rating, 55 A per leg current capacity, common cathode configuration, and D-61-8 package dimensions.

FAQ

What is the maximum non-repetitive surge current rating?

The maximum peak one-cycle non-repetitive surge current is 5400 A for a 5 µs sine pulse or 3 µs rectangular pulse following any rated load condition.

How is the device thermally managed?

The maximum thermal resistance from junction to case is 0.5 °C/W per leg. For the D-61-8 package, the typical thermal resistance from case to heatsink is 0.30 °C/W when using a smooth, greased mounting surface with device flatness less than 5 mils.

What is the typical series inductance of the module?

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