161CMQ040

Overview

The Vishay 161CMQ040 is a Schottky rectifier module with a center tap configuration, rated for 160 A average forward current and 40 V maximum DC reverse voltage. It features an isolated base (anode) in a TO-249AA package, allowing direct heatsink mounting. The device supports junction temperatures up to 175°C and offers low forward voltage drop characteristics.

Feature Summary

• Center tap module design with isolated anode base for simplified thermal management
• Proprietary barrier technology enabling reliable operation at high junction temperatures
• Guard ring structure designed to enhance ruggedness and long-term reliability
• Multiple leads per terminal optimized for high-frequency and high-current applications

Applications

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

Procurement Notes

Verify the specific suffix against the datasheet to confirm voltage rating and compliance status. Confirm that the supplier provides the original Vishay or International Rectifiers documentation. Ensure the component matches the TO-249AA outline D-60 dimensions for proper mechanical integration.

Selection Notes

Select this module when high current density and low forward voltage are required in a compact form factor. The isolated base allows for efficient cooling without electrical isolation barriers. Consider the 175°C operating limit for high-temperature environments where standard silicon devices may fail.

Part Context

This component belongs to the 161CMQ series of Schottky rectifiers from Vishay General Semiconductor - Diodes Division. The series includes variants with different voltage ratings ranging from 30V to 50V, all sharing the same 160A current rating and physical package.

Replacement Considerations

Public confirmed substitute part numbers: None identified.