The RBK04U04GNS from Renesas is a MOSFET with Continous Drain Current 35 A, Drain Source Resistance 1.2 to 1.5 milliohm, Drain Source Breakdown Voltage 40 V, Gate Source Voltage -20 to 20 V, Gate Charge 111 nC. Tags: Surface Mount. More details for RBK04U04GNS can be seen below.