The PSMNR90-40YLH from Nexperia is a MOSFET with Continous Drain Current 285 to 300 A, Drain Source Resistance 0.76 to 2.6 milliohm, Drain Source Breakdown Voltage 40 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 1.35 to 2.05 V. Tags: Surface Mount. More details for PSMNR90-40YLH can be seen below.