The FDMC89521L from onsemi is a MOSFET with Continous Drain Current 8.2 A, Drain Source Resistance 17 milliohm, Drain Source Breakdown Voltage 60 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 3 V. Tags: Surface Mount. More details for FDMC89521L can be seen below.