VS-81CNQ045ASLPBF

Diode Arrays Overview

The VS-81CNQ045ASLPBF is a center tap Schottky rectifier module from Vishay, utilizing the D-61-8-SL package. It features a common cathode configuration with two independent anodes. The device supports a maximum DC reverse voltage of 45 V and provides a total average forward current rating of 80 A (2 x 40 A per leg). Key electrical characteristics include a maximum forward voltage drop of 0.74 V at 80 A and 125 °C, and a peak non-repetitive surge current capability of 4600 A. The module is designed for junction temperatures up to 175 °C.

Diode Arrays Feature Summary

• Center tap module optimized for low reverse leakage at high temperatures
• Proprietary barrier technology enabling reliable operation up to 175 °C junction temperature
• Guard ring structure enhances ruggedness and long-term reliability
• High purity epoxy encapsulation provides enhanced mechanical strength and moisture resistance

Diode Arrays Applications

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

Diode Arrays Procurement Notes

Verify the specific suffix ASL corresponds to the D-61-8-SL leaded package variant when sourcing. Confirm RoHS compliance status as indicated by the PbF designation in official documentation. Ensure thermal management design accounts for the specified thermal resistance values to maintain safe operating junction temperatures under load conditions.

Diode Arrays Selection Notes

Select this component for applications requiring high current handling in a compact through-hole form factor. The 45 V rating suits low-voltage high-current conversion stages. Evaluate thermal dissipation requirements against the 0.85 °C/W junction-to-case resistance. Consider the 175 °C operating limit for environments with elevated ambient temperatures or limited airflow.

Diode Arrays Part Context

This part belongs to the VS-81CNQ...A PbF Series, representing a new generation of Schottky rectifiers in the D-61 family. The series offers various voltage ratings (35 V, 40 V, 45 V) and package options including standard, surface mount, and leaded variants. It is manufactured by Vishay High Power Products for industrial level qualification.

Diode Arrays Replacement Considerations

Check datasheet Document Number 94595 for compatible alternatives within the same series. Verify pinout compatibility and thermal resistance specifications before substituting with other manufacturers' center tap Schottky modules.

Diode Arrays FAQ

What is the maximum junction temperature for the VS-81CNQ045ASLPBF?

The maximum junction temperature range is -55 °C to 175 °C.

How is the internal circuit configured?

The device uses a common cathode configuration with two separate anodes (center tap module).

What is the peak non-repetitive surge current rating?

The maximum peak one-cycle non-repetitive surge current is 4600 A for a 5 μs sine pulse.