The FDD9509L-F085 from onsemi is a MOSFET with Continous Drain Current -90 A, Drain Source Resistance 7.5 milliohm, Drain Source Breakdown Voltage -40 V, Gate Source Voltage -16 to 16 V, Gate Source Threshold Voltage -3 V. Tags: Surface Mount. More details for FDD9509L-F085 can be seen below.