The RQ6A045AP from ROHM Semiconductor is a MOSFET with Continous Drain Current -4.5 to 4.5 A, Drain Source Resistance 22 to 100 Milliohm, Drain Source Breakdown Voltage -12 V, Gate Source Voltage -8 to 0 V, Gate Source Threshold Voltage -3 to -1 V. Tags: Surface Mount. More details for RQ6A045AP can be seen below.