The FQP 70N10 is a metal-oxide-semiconductor field-effect transistor (MOSFET) manufactured by ON Semiconductor. It is commonly used for power switching and amplification. The FQP 70N10 is a N-channel MOSFET and has a maximum drain-source voltage of 100 volts. It has a maximum drain current of 70 amperes and a maximum power dissipation of 350 watts. Additionally, the FQP 70N10 has a small gate charge of 8.5 nC and a high switching speed of 118 nanoseconds. It is used in applications such as power supplies, motor and solenoid drivers, dc-dc converters, inverter stages, and other power switching applications.