The PSMN2R2-40YSD from Nexperia is a MOSFET with Continous Drain Current 140 to 180 A, Drain Source Resistance 1.9 to 4.3 Milliohm, Drain Source Breakdown Voltage 40 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 2.4 to 3.6 V. Tags: Surface Mount. More details for PSMN2R2-40YSD can be seen below.