The PJD40N15 from PANJIT Semiconductor is a MOSFET with Continous Drain Current 40 A, Drain Source Resistance 30 to 35 milliohm, Drain Source Breakdown Voltage 150 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 2 to 4 V. Tags: Surface Mount. More details for PJD40N15 can be seen below.