The AP2900EC4 from Advanced Power Electronics Corp is a MOSFET with Continous Drain Current 9 A, Drain Source Resistance 15 to 30 milli-ohm, Drain Source Breakdown Voltage 24 V, Gate Source Voltage -12 to 12 V, Gate Charge 18 nC. Tags: Surface Mount. More details for AP2900EC4 can be seen below.