The BSS84AK from Nexperia is a MOSFET with Continous Drain Current -0.18 to -0.12 A, Drain Source Resistance 4500 to 13500 milliohm, Drain Source Breakdown Voltage -50 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage -2.1 to -1.1 V. Tags: Surface Mount. More details for BSS84AK can be seen below.