The NX138BKS from Nexperia is a MOSFET with Continous Drain Current 0.135 to 0.33 A, Drain Source Resistance 2100 to 7200 milliohm, Drain Source Breakdown Voltage 60 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 0.5 to 1.5 V. Tags: Surface Mount. More details for NX138BKS can be seen below.