An electronic converter assembly including a liquid cooled heat sink member having a sink length dimension, at least one mounting surface and first and second oppositely facing lateral surfaces, the mounting surface and first and second lateral surfaces forming first and second lateral edges, respectively, the sink member also forming at least one internal channel that extends substantially along the entire sink length, an inlet and an outlet that open into opposite ends of the channel, a plurality of power switching devices mounted side by side to the mounting surface thereby forming a single device row that extends substantially along the sink length, each device including intra-converter terminals that are substantially within a single connection plane, a plurality of capacitors, each capacitor including capacitor connection terminals, the capacitors linked for support to and adjacent the sink member with the capacitor terminals juxtaposed substantially within the connection plane and a linkage assembly including a plurality of conductors that link the capacitor terminals to the intra-converter terminals to form a power conversion topology.