The BUK9K22-80E from Nexperia is a MOSFET with Continous Drain Current 15 to 21 A, Drain Source Resistance 14.4 to 54.5 milliohm, Drain Source Breakdown Voltage 80 V, Gate Source Voltage -15 to 15 V, Gate Source Threshold Voltage 0.5 to 2.45 V. Tags: Surface Mount. More details for BUK9K22-80E can be seen below.