The NTMFS5C442NT3G from onsemi is a MOSFET with Continous Drain Current 21 to 140 A, Drain Source Resistance 1.9 to 2.3 milli-ohm, Drain Source Breakdown Voltage 40 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 2 to 4 V. Tags: Surface Mount. More details for NTMFS5C442NT3G can be seen below.