An electronics assembly used in a vehicle included a printed circuit board (PCB) having a first side and a second side; a plurality of electrical components mounted on the first side of the PCB; a heat sink, configured to receive cooling fluid from a source, positioned adjacent to the second side of the PCB; and a cooling fluid conduit, configured to communicate the cooling fluid from a fluid inlet to a fluid outlet, wherein the cooling fluid conduit is positioned adjacent to the first side of the PCB and directly contacts an outer surface of the electrical components.