The NTMFS5H409NLT3G from onsemi is a MOSFET with Continous Drain Current 270 A, Drain Source Resistance 0.85 to 1.6 milliohm, Drain Source Breakdown Voltage 40 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 1.2 to 2 V. Tags: Surface Mount. More details for NTMFS5H409NLT3G can be seen below.