The BSS127 from Rectron Semiconductor is a MOSFET with Continous Drain Current 0.021 A, Drain Source Resistance 310000 to 600000 milliohm, Drain Source Breakdown Voltage 600 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 1 to 2.6 V. Tags: Surface Mount. More details for BSS127 can be seen below.