The PSMN1R0-40SSH from Nexperia is a MOSFET with Continous Drain Current 293 to 325 A, Drain Source Resistance 0.88 to 2.2 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 PSMN1R0-40SSH can be seen below.