The ES5N10B from Hunan Jingxin Microelectronics is a MOSFET with Continous Drain Current 2.1 to 2.7 A, Drain Source Resistance 95 to 145 milli-ohm, Drain Source Breakdown Voltage 100 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 1.0 to 2.5 V. Tags: Surface Mount. More details for ES5N10B can be seen below.