The NTMFS4C01NT1G from onsemi is a MOSFET with Continous Drain Current 303 A, Drain Source Resistance 0.71 to 1.2 milliohm, Drain Source Breakdown Voltage 30 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 1.3 to 2.2 V. Tags: Surface Mount. More details for NTMFS4C01NT1G can be seen below.