The ESGNR085R052 from Hunan Jingxin Microelectronics is a MOSFET with Continous Drain Current 85 to 110 A, Drain Source Resistance 4.2 to 5.2 milli-ohm, Drain Source Breakdown Voltage 85 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 2.0 to 4.0 V. Tags: Surface Mount. More details for ESGNR085R052 can be seen below.