The ESGNJ04R012 from Hunan Jingxin Microelectronics is a MOSFET with Continous Drain Current 95 to 150 A, Drain Source Resistance 1.0 to 1.24 milli-ohm, Drain Source Breakdown Voltage 40 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 1.4 to 2.4 V. Tags: Surface Mount. More details for ESGNJ04R012 can be seen below.