The BSS123T-HF from Comchip Technology is a MOSFET with Continous Drain Current 0.19 A, Drain Source Resistance 2800 to 7000 milliohm, Drain Source Breakdown Voltage 100 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 1 to 2.5 V. Tags: Surface Mount. More details for BSS123T-HF can be seen below.