80CNQ040ASL

Overview

The Vishay VS-80CNQ040ASL is a center tap Schottky rectifier module featuring two independent legs within a single D-61-8-SL package. It provides a maximum average forward current of 40 A per leg and a repetitive peak reverse voltage of 40 V. The device utilizes proprietary barrier technology to achieve very low forward voltage drop while maintaining high frequency operation capabilities. Designed for industrial level applications, it supports junction temperatures up to 150 °C and incorporates guard ring structures for enhanced ruggedness.

Feature Summary

• Center tap configuration with common cathode base
• Very low forward voltage drop characteristics
• High temperature epoxy encapsulation for moisture resistance
• Guard ring structure for long term reliability

Applications

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

Procurement Notes

Verify the specific ordering suffix ASL corresponds to the D-61-8-SL leaded through-hole package variant. Confirm RoHS compliance status as the datasheet indicates PbF terminations are compliant. Ensure thermal management design accounts for the specified junction-to-case thermal resistance values under your specific duty cycle conditions.

Selection Notes

Select this component when a dual-leg Schottky solution with a shared cathode is required in a compact footprint. The 40 V rating suits low voltage DC bus applications. Evaluate thermal performance against the maximum allowable case temperature curves provided in the datasheet to ensure reliable operation at the target ambient temperatures.

Part Context

This part belongs to the VS-80CNQ...A PbF series, representing the New Generation 3 D-61 package family from Vishay High Power Products. The series includes variants with different voltage ratings (35 V, 40 V, 45 V) and package styles (standard, surface mount, and leaded). The 'A' designation typically denotes the specific generation or revision of the internal barrier technology.

Replacement Considerations

Direct replacements include other parts from the VS-80CNQ...A series with identical current ratings but different voltage options if system requirements change. Verify pinout compatibility and thermal resistance specifications before substituting with modules from other manufacturers offering similar D-61 form factors.