The APTDF400AA20G is a discrete semiconductor module manufactured by Microchip. It is designed to provide high levels of stability and reliability while operating in a wide range of environments and temperatures. It is constructed of high-grade components, including an overmolded enclosure, a terminal block that connects to a power source, and a circuit board populated with the CC6134 microcontroller. This module is suitable for a variety of applications including, automotive, industrial, military, and medical. It can be used for digital signal processing, motor control, distributed power control, digital-to-analog and analog-to-digital conversion, and communications applications. It is rated for 400 amps and features built-in power supply noise filtering, overcurrent protection, output short-circuit protection, thermal protection, and both programmable output current limits and overvoltage protection.