The RJF0408JPD from Renesas is a MOSFET with Continous Drain Current 30 A, Drain Source Resistance 19 to 40 milliohm, Drain Source Breakdown Voltage 40 V, Gate Source Voltage -2.5 to 16 V, Power Dissipation 40 W. Tags: Surface Mount. More details for RJF0408JPD can be seen below.