The BSS84 from First Silicon is a MOSFET with Continous Drain Current 0.13 A, Drain Source Resistance 1.7 to 10 ohm, Drain Source Breakdown Voltage 50 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 0.9 to 2 V. Tags: Surface Mount. More details for BSS84 can be seen below.