The ES6401 from Hunan Jingxin Microelectronics is a MOSFET with Continous Drain Current -3.3 to -4.3 A, Drain Source Resistance 36 to 95 milli-ohm, Drain Source Breakdown Voltage -18 V, Gate Source Voltage -10 to 10 V, Gate Source Threshold Voltage -0.4 to -0.95 V. Tags: Surface Mount. More details for ES6401 can be seen below.