The BUK9K89-100E from Nexperia is a MOSFET with Continous Drain Current 8.9 to 12.5 A, Drain Source Resistance 74.9 to 245 milliohm, Drain Source Breakdown Voltage 100 V, Gate Source Voltage -15 to 15 V, Gate Source Threshold Voltage 0.5 to 2.45 V. Tags: Surface Mount. More details for BUK9K89-100E can be seen below.