The BUK9620-100B from Nexperia is a MOSFET with Continous Drain Current 45 to 63 A, Drain Source Resistance 15.6 to 50 milliohm, Drain Source Breakdown Voltage 100 V, Gate Source Voltage -15 to 15 V, Gate Source Threshold Voltage 0.5 to 2.3 V. Tags: Surface Mount. More details for BUK9620-100B can be seen below.