80CNQ045ASM

Overview

The Vishay VS-80CNQ045ASM is a Schottky rectifier module featuring a dual anode common cathode configuration within the D-61-8-SM package. It provides a maximum average forward current of 80 A and a maximum repetitive peak reverse voltage of 45 V. The device operates reliably up to a junction temperature of 150 °C, with a typical forward voltage drop of 0.47 V at 40 Apk per leg. Key electrical characteristics include a non-repetitive surge current capability of 5800 A and a maximum reverse leakage current of 5 mA at rated voltage.

Feature Summary

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

Applications

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

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm the exact package style and termination finish. The 'ASM' designation corresponds to the D-61-8-SM case style. Confirm RoHS compliance status and lead-free availability requirements prior to procurement, as specifications are subject to change without notice.

Selection Notes

Select this component for applications requiring high-frequency operation and low conduction losses in power conversion systems. Ensure the thermal management solution maintains the junction temperature within the specified -55 °C to 150 °C range. Evaluate the thermal resistance from junction to case and case to heatsink to determine appropriate cooling methods for the expected duty cycle and ambient conditions.

Part Context

This part belongs to the VS-80CNQ...A PbF Series, representing the New Generation 3 D-61 Package line from Vishay High Power Products. The series includes variants with different voltage ratings (35 V, 40 V, 45 V) and package styles (D-61-8, D-61-8-SM, D-61-8-SL). The 80CNQ045ASM specifically utilizes the surface-mount compatible D-61-8-SM footprint.

Replacement Considerations

Direct substitutes within the same series include the 80CNQ045ASL (D-61-8-SL package) and 80CNQ045A (D-61-8 package), provided the mechanical mounting constraints allow for the alternative form factors. Verify that any replacement maintains the required 45 V reverse voltage rating and 80 A current capacity.

FAQ

What is the maximum non-repetitive surge current rating?

The maximum peak one-cycle non-repetitive surge current is 5800 A for a 5 μs sine pulse or 3 μs rectangular pulse.

How does the forward voltage drop vary with temperature?

At 40 Apk, the forward voltage drop is typically 0.52 V at 25 °C and decreases to 0.47 V at 125 °C junction temperature.

What is the typical series inductance per leg?

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