The FDC6321C from onsemi is a MOSFET with Continous Drain Current -0.46 to 0.68 A, Drain Source Resistance 0.33 to0.72 milliohm, Drain Source Breakdown Voltage -25 V, Gate Source Voltage -8 to 8 V, Gate Source Threshold Voltage 1.5 V. Tags: Surface Mount. More details for FDC6321C can be seen below.