The BUK9V13-40H from Nexperia is a MOSFET with Continous Drain Current 30 to 42 A, Drain Source Resistance 7.9 to 32.8 milliohm, Drain Source Breakdown Voltage 40 V, Gate Source Voltage 20 V, Gate Source Threshold Voltage 0.7 to 2.2 V. Tags: Surface Mount. More details for BUK9V13-40H can be seen below.