87CNQ020ASM

Overview

The Vishay VS-87CNQ020ASM is a center tap Schottky rectifier module in the D-61-8-SM package. It features two common cathode elements with a maximum average forward current of 40 A per leg (80 A total) and a repetitive peak reverse voltage of 20 V. The device operates up to a junction temperature of 150 °C, offering an ultralow forward voltage drop of 0.32 V at 40 A and 125 °C. It includes guard ring technology for ruggedness and utilizes high purity epoxy encapsulation.

Feature Summary

• Center tap configuration optimized for low voltage applications
• Ultralow forward voltage drop for high efficiency
• Guard ring structure for enhanced reliability
• High temperature operation capability

Applications

• Parallel switching power supplies
• DC-to-DC converters
• Reverse battery protection circuits
• Redundant power subsystems

Procurement Notes

Verify the specific ordering suffix against the manufacturer's documentation to confirm the exact package style and packing quantity. The 'SM' suffix indicates the D-61-8-SM case style. Confirm lead-free status and RoHS compliance requirements match the project specifications before finalizing procurement orders.

Selection Notes

Select this component for designs requiring high current density in a compact surface mount footprint. Ensure thermal management strategies account for the specified thermal resistance values. Verify that the operating voltage does not exceed the rated limits at the maximum expected junction temperature to maintain reliable performance.

Part Context

This part belongs to the VS-87CNQ020A series of new generation Schottky rectifiers. It utilizes proprietary barrier technology to achieve superior performance characteristics compared to standard diodes. The series is designed specifically for industrial level applications requiring robust power handling capabilities.

Replacement Considerations

Direct substitutes include the VS-87CNQ020A (D-61-8 package) and VS-87CNQ020ASL (D-61-8-SL package). Verify pinout compatibility and mounting torque specifications when transitioning between different package styles within the same series.

FAQ

What is the maximum non-repetitive surge current rating?

The maximum non-repetitive surge current is 6000 A for a 5 μs sine pulse or 1100 A for a 10 ms sine pulse.

How does the reverse leakage current vary with temperature?

The maximum reverse leakage current increases significantly with temperature, reaching 550 mA at 125 °C and 480 mA at 150 °C under specific test conditions.

What is the typical series inductance of the device?

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