The FDMS4D0N12C from onsemi is a MOSFET with Continous Drain Current 118 A, Drain Source Resistance 4 milliohm, Drain Source Breakdown Voltage 120 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 4 V. Tags: Surface Mount. More details for FDMS4D0N12C can be seen below.