The BUK9K20-80E from Nexperia is a MOSFET with Continous Drain Current 16 to 23 A, Drain Source Resistance 13 to 49 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 BUK9K20-80E can be seen below.