The NDT3055 from onsemi is a MOSFET with Continous Drain Current 4 A, Drain Source Resistance 84 to 180 milliohm, Drain Source Breakdown Voltage 60 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 2 to 4 V. Tags: Surface Mount. More details for NDT3055 can be seen below.