163CMQ080

Overview

The 163CMQ080 is a Schottky diode array manufactured by SMC Diode Solutions, featuring a common cathode configuration with one pair of diodes. It supports an average rectified forward current of 80A per diode and has a maximum DC reverse voltage (Vr) of 80V. The device exhibits a forward voltage (Vf) of 1.25V at 40A and a reverse leakage current of 10mA at 80V. Operating junction temperature ranges from -55°C to 150°C, with a fast recovery time of less than 500ns for currents greater than 200mA. The component utilizes a TO-249AA package for chassis mounting.

Feature Summary

• Schottky barrier technology ensures low forward voltage drop for improved efficiency
• Common cathode dual configuration simplifies circuit design for bridge or freewheeling applications
• High purity epoxy encapsulation provides enhanced mechanical strength and moisture resistance
• Designed for high-temperature operation up to 150°C junction temperature

Applications

• DC-DC converters in industrial power supplies
• Freewheeling diodes in motor drive circuits
• Inverter and rectifier bridges in renewable energy systems
• High-frequency switching power supplies

Procurement Notes

Verify the specific suffix codes on the datasheet to ensure compatibility with required thermal and electrical specifications. Confirm that the TO-249AA package dimensions match the intended heatsink interface. Check RoHS compliance status if environmental regulations apply to the final assembly. Ensure the ordering quantity aligns with manufacturer standard packaging requirements to avoid partial reel issues.

Selection Notes

Select this component when a low-loss, high-current Schottky solution is required for 80V bus applications. The common cathode arrangement reduces component count compared to discrete setups. Evaluate thermal management needs carefully, as the TO-249AA package relies on chassis mounting for adequate heat dissipation under full 80A load conditions. Compare Vf characteristics against alternative brands to optimize system efficiency.

Part Context

This part belongs to the 163CMQ series of Schottky rectifiers from SMC Diode Solutions. The series offers various voltage and current ratings within the same TO-249AA form factor, allowing for design flexibility. It is positioned as a robust power device for medium-to-high current applications requiring fast switching characteristics and high reliability in demanding environments.

Replacement Considerations

Direct pin-compatible replacements may include other manufacturers' 80V 80A Schottky arrays in TO-249AA packages, such as those from Vishay or Littelfuse. Verify that substitute parts meet or exceed the 150°C junction temperature rating and have comparable forward voltage drops to maintain thermal performance.