The PIP401 will have optimum use in supply lines with up to 40 A loads. For higher currents, two or more PIP401 devices can be used in parallel. The intended application is parallel redundant power supply networks, where the PIP401 provides a high-efficiency alternative to a rectifier diode. When the input voltage is greater than the output voltage, the PIP401 conducts with very low voltage drop. When the input voltage drops below the output voltage, the PIP401 switches off very quickly, blocking the flow of reverse current. Remote sensing of the load voltage compensates for inductance in the power supply lines. A thermal indicator is provided to allow power supply shutdown or load reduction if the junction temperature exceeds 150 C.