Standard Unidirectional and Bidirectional TVS

Overview

Microsemi Corporation (MSCC) is a world leader in the design, fabrication, qualification, and supply of Transient Voltage Suppressors (TVS). Applications include military and medical equipment, telecommunications, computers and their peripherals. Microsemi also provides protection to the electronics of engine control systems in the sophisticated avionics and aerospace industries. The company offers a broad portfolio of both uni- and bi- directional discreet plastic TVS devices with power levels from 600W to 100kW. The qualification test plans and reliability monitoring provided for all these products are in line with the best industry standard practices. This catalog includes an exciting expansion in Microsemi’s industry leading Plastic Large Area Device (PLAD) surface mount package offerings for TVS devices. PLADs provide large exposed metal pads on the bottom of the package with excellent direct internal connection to the die – there are no wire bonds. This provides a very low resistance thermal path, which is much superior to axial leaded devices and is critical in meeting the expanding requirements for multi-stoke and multi-burst event protection in composite body aircraft.
Increasing emphasis is being placed on multi-stroke and multi-burst lightening protection, particularly (but not exclusively) in the protection of the growing proportion of new aircraft being built with largely composite bodies. Test standards for these hazards are defined by RTCA standard DO-160. Microsemi’s high-reliability plastic PLAD packaged TVS devices are uniquely suited to address these requirements.