The RJK0455DPB from Renesas is a MOSFET with Continous Drain Current 45 A, Drain Source Resistance 3.1 to 3.8 milliohm, Drain Source Breakdown Voltage 40 V, Gate Source Voltage -20 to 20 V, Gate Charge 34 nC. Tags: Surface Mount. More details for RJK0455DPB can be seen below.