The BSS123LT1G from onsemi is a MOSFET with Continous Drain Current 0.17 A, Drain Source Resistance 6000 milli-ohm, Drain Source Breakdown Voltage 100 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 1.6 to 2.6 V. Tags: Surface Mount. More details for BSS123LT1G can be seen below.