The NTMT064N65S3H from onsemi is a MOSFET with Continous Drain Current 40 A, Drain Source Resistance 52 to 64 milliohm, Drain Source Breakdown Voltage 650 V, Gate Source Voltage -30 to 30 V, Gate Source Threshold Voltage 2.4 to 4 V. Tags: Surface Mount. More details for NTMT064N65S3H can be seen below.