The BUK7M3R3-40H from Nexperia is a MOSFET with Continous Drain Current 80 to 80 A, Drain Source Resistance 1.8 to 7.2 milliohm, Drain Source Breakdown Voltage 40 V, Gate Source Voltage -10 to 20 V, Gate Source Threshold Voltage 1 to 4.3 V. Tags: Surface Mount. More details for BUK7M3R3-40H can be seen below.