The NTBL050N65S3H from onsemi is a MOSFET with Continous Drain Current 49 A, Drain Source Resistance 42.5 to 50 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 NTBL050N65S3H can be seen below.