The AUIRF7303Q from Infineon Technologies is a MOSFET with Continous Drain Current 4.4 to 5.3 A, Drain Source Resistance 0.05 to 0.08 Mohms, Drain Source Breakdown Voltage 30 V, Gate Source Voltage 20 V, Gate Source Threshold Voltage 1 to 3 V. Tags: Surface Mount. More details for AUIRF7303Q can be seen below.