The FDC6401N from onsemi is a MOSFET with Continous Drain Current 3 A, Drain Source Resistance 50 to 106 milliohm, Drain Source Breakdown Voltage 20 V, Gate Source Voltage -12 to 12 V, Gate Source Threshold Voltage 1.5 V. Tags: Surface Mount. More details for FDC6401N can be seen below.