The R6511ENJ from ROHM Semiconductor is a MOSFET with Continous Drain Current -11 to 11 A, Drain Source Resistance 360 to 400 Milliohm, Drain Source Breakdown Voltage 650 V, Gate Source Voltage -30 to 30 V, Gate Source Threshold Voltage 2 to 4 V. Tags: Surface Mount. More details for R6511ENJ can be seen below.