The RJK0452DPB from Renesas is a MOSFET with Continous Drain Current 45 A, Drain Source Resistance 2.8 to 4.7 milliohm, Drain Source Breakdown Voltage 40 V, Gate Source Voltage -20 to 20 V, Gate Charge 26 nC. Tags: Surface Mount. More details for RJK0452DPB can be seen below.