The AUIRF7103Q from Infineon Technologies is a MOSFET with Continous Drain Current 2.5 to 3 A, Drain Source Resistance 130 to 200 Mohms, Drain Source Breakdown Voltage 50 V, Gate Source Voltage 20 V, Gate Source Threshold Voltage 1 to 3 V. Tags: Surface Mount. More details for AUIRF7103Q can be seen below.