The EFC4621R from onsemi is a MOSFET with Continous Drain Current 9 A, Drain Source Resistance 10.8 to 30 milliohm, Drain Source Breakdown Voltage 24 V, Gate Source Voltage -12 to 12 V, Gate Source Threshold Voltage 1.3 V. Tags: Surface Mount. More details for EFC4621R can be seen below.