The UT6JB5 from ROHM Semiconductor is a MOSFET with Continous Drain Current -3.5 to 3.5 A, Drain Source Resistance 95 to 155 milliohm, Drain Source Breakdown Voltage -40 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage -2.5 to -1 V. Tags: Surface Mount. More details for UT6JB5 can be seen below.