The 1-155777G is a 5A/100V parts manufactured by Bel Fuse, Inc. This part is a single-pole MOSFET switch designed for higher current applications where low voltage drop and fast switching time is required. The device has built-in protection features including thermal shutdown and currentfold protection. It features ultra-low on-resistance, high temperature range and high surge capability. This part is ideal for systems including power management applications, power supplies, motor controllers, audio amplifiers, and switching regulators.