The BUK7K17-80E from Nexperia is a MOSFET with Continous Drain Current 15 to 21 A, Drain Source Resistance 12.5 to 42 milliohm, Drain Source Breakdown Voltage 80 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 2.4 to 4.5 V. Tags: Surface Mount. More details for BUK7K17-80E can be seen below.