The PSMN2R2-40BS from Nexperia is a MOSFET with Continous Drain Current 100 A, Drain Source Resistance 1.88 to 4.4 Milliohm, Drain Source Breakdown Voltage 40 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 1 to 4.6 V. Tags: Surface Mount. More details for PSMN2R2-40BS can be seen below.