The BUK9Y19-75B from Nexperia is a MOSFET with Continous Drain Current 34.1 to 48.2 A, Drain Source Resistance 14.7 to 48 milliohm, Drain Source Breakdown Voltage 75 V, Gate Source Voltage -15 to 15 V, Gate Source Threshold Voltage 0.5 to 2.45 V. Tags: Surface Mount. More details for BUK9Y19-75B can be seen below.