The FDMS7700S from onsemi is a MOSFET with Continous Drain Current 30 to 40 A, Drain Source Resistance 2.4 to 7.5 milliohm, Drain Source Breakdown Voltage 30 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 3 V. Tags: Surface Mount. More details for FDMS7700S can be seen below.