The FDS8870 from onsemi is a MOSFET with Continous Drain Current 18 A, Drain Source Resistance 4.2 milliohm, Drain Source Breakdown Voltage 30 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 2.5 V. Tags: Surface Mount. More details for FDS8870 can be seen below.