The PSMN4R3-30BL from Nexperia is a MOSFET with Continous Drain Current 80 to 100 A, Drain Source Resistance 3.5 to 7.8 milliohm, Drain Source Breakdown Voltage 30 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 0.5 to 2.45 V. Tags: Surface Mount. More details for PSMN4R3-30BL can be seen below.