The NTA4001NT1G from onsemi is a MOSFET with Continous Drain Current 0.238 A, Drain Source Resistance 1500 to 3500 milliohm, Drain Source Breakdown Voltage 20 V, Gate Source Voltage -10 to 10 V, Gate Source Threshold Voltage 0.5 to 1.5 V. Tags: Surface Mount. More details for NTA4001NT1G can be seen below.