The FDMS3500 from onsemi is a MOSFET with Continous Drain Current 49 A, Drain Source Resistance 14.5 milliohm, Drain Source Breakdown Voltage 75 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 3 V. Tags: Surface Mount. More details for FDMS3500 can be seen below.