The BUK7Y19-100E from Nexperia is a MOSFET with Continous Drain Current 40 to 56 A, Drain Source Resistance 12.1 to 52.6 milliohm, Drain Source Breakdown Voltage 100 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 1 to 4.5 V. Tags: Surface Mount. More details for BUK7Y19-100E can be seen below.