The BUK7K45-100E from Nexperia is a MOSFET with Continous Drain Current 15 to 21.4 A, Drain Source Resistance 30 to 104 milliohm, Drain Source Breakdown Voltage 100 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 2.4 to 4.5 V. Tags: Surface Mount. More details for BUK7K45-100E can be seen below.