Three phase bridge modules provide higher efficiency and reliability

December 13, 2016 // By Nick Flaherty
Vishay Intertechnology has introduced three new series of three-phase-bridge power modules designed to increase efficiency and reliability for heavy-duty industrial-level applications.

The VS-130MT...C, VS-160MT...C, and VS-300MT...C series feature high output current from 130 A to 300 A and blocking voltage to 1800 V. For high efficiency, the power modules offer surge current to 2,512 A and an electrically insulated case for excellent junction-to-case thermal resistance down to 0.23 °C/W. The devices' robust MTC plastic package provides high reliability, while its screw terminals allow for compatibility with competing solutions. The devices deliver higher output current, blocking voltage, and surge current than the previous modules with improved thermal resistance down to to 0.23 °C/W in a 5-terminal MTC package.

The family is aimed at three-phase rectification for industrial power supplies, high-frequency welding, plasma cutting, and industrial battery chargers, in addition to input rectification for AC/DC motor controls. The RoHS-compliant devices offer 3600 VRMS insulation voltage and are pending UL approval.

Samples and production quantities of the new power modules are available now, with lead times of eight to 10 weeks for large orders.

More information is at www.vishay.com.