The ES4838 from Hunan Jingxin Microelectronics is a MOSFET with Continous Drain Current 10 to 13 A, Drain Source Resistance 7.5 to 18 milli-ohm, Drain Source Breakdown Voltage 30 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 1.0 to 1.8 V. Tags: Surface Mount. More details for ES4838 can be seen below.