The FDS4897AC from onsemi is a MOSFET with Continous Drain Current -5.2 to 6.1 A, Drain Source Resistance 26 to 39 milliohm, Drain Source Breakdown Voltage -40 to 40 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage -3 to 3 V. Tags: Surface Mount. More details for FDS4897AC can be seen below.