The NTHD4508NT1G from onsemi is a MOSFET with Continous Drain Current 3 A, Drain Source Resistance 60 to 115 milliohm, Drain Source Breakdown Voltage 20 V, Gate Source Voltage -12 to 12 V, Gate Source Threshold Voltage 0.6 to 1.2 V. Tags: Surface Mount. More details for NTHD4508NT1G can be seen below.