The BUK9620-55A from Nexperia is a MOSFET with Continous Drain Current 38 to 54 A, Drain Source Resistance 15 to 40 milliohm, Drain Source Breakdown Voltage 55 V, Gate Source Voltage -10 to 10 V, Gate Source Threshold Voltage 0.5 to 2.3 V. Tags: Surface Mount. More details for BUK9620-55A can be seen below.