The PJS6603-AU from PANJIT Semiconductor is a MOSFET with Continous Drain Current -2.9 to 4.4 A, Drain Source Resistance 36 to 150 milliohm, Drain Source Breakdown Voltage -30 to 30 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage -2.1 to 2.1 V. Tags: Surface Mount. More details for PJS6603-AU can be seen below.