The BUK9J0R9-40H from Nexperia is a MOSFET with Continous Drain Current 220 A, Drain Source Resistance 0.53 to 2.6 milliohm, Drain Source Breakdown Voltage 40 V, Gate Source Voltage -10 to 16 V, Gate Source Threshold Voltage 0.6 to 2.05 V. Tags: Surface Mount. More details for BUK9J0R9-40H can be seen below.