MMBFU310LT1G is an N-Channel enhancement mode Field-Effect Transistor (FET) manufactured by ON Semiconductor. It has a maximum drain-source voltage of -55 volts, a maximum drain current of -3 amps, and a maximum gate-source voltage of ±20 volts. It is typically used as a switch and has a maximum operating temperature of +175 °C. The transistor is encapsulated in a D-PAK surface-mount package and is ideal for automated assembly processes.