The FDMS3669S from onsemi is a MOSFET with Continous Drain Current 13 to 18 A, Drain Source Resistance 5 to 10 milliohm, Drain Source Breakdown Voltage 30 V, Gate Source Voltage -12 to 12 V, Gate Source Threshold Voltage 2.5 to 2.7 V. Tags: Surface Mount. More details for FDMS3669S can be seen below.