The ESD403 from Hunan Jingxin Microelectronics is a MOSFET with Continous Drain Current -48 to -62 A, Drain Source Resistance 8 to 18 milli-ohm, Drain Source Breakdown Voltage -30 V, Gate Source Voltage -25 to 25 V, Gate Source Threshold Voltage -1.0 to -2.0 V. Tags: Surface Mount. More details for ESD403 can be seen below.