The NTJS3157NT2G from onsemi is a MOSFET with Continous Drain Current 4 A, Drain Source Resistance 45 to 85 milli-ohm, Drain Source Breakdown Voltage 20 V, Gate Source Voltage -8 to 8 V, Gate Source Threshold Voltage 0.4 to 1 V. Tags: Surface Mount. More details for NTJS3157NT2G can be seen below.