The ES4406A from Hunan Jingxin Microelectronics is a MOSFET with Continous Drain Current 7.8 to 10 A, Drain Source Resistance 10.5 to 26 milli-ohm, Drain Source Breakdown Voltage 30 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 1.0 to 2.4 V. Tags: Surface Mount. More details for ES4406A can be seen below.