An electrical built-in plug connector having a housing with at least one mounting structure projecting transversely to the longitudinal axis of the housing, with more than five electrical contacts fixed in the housing, wherein the contacts are guided outwards at one end of the housing parallel to the longitudinal axis of the housing, wherein the end sections of the sections of the contacts located outside of the housing are angled relative to their sections located inside the housing, and their connection sections provided for connecting to a circuit board end in a common plane, which plane is parallel to the longitudinal axis of the housing, wherein the connection regions are arranged in groups, and the individual groups are situated on at least three parallel straight lines, which are part of the common plane, wherein the ends of the sections of the contacts guided in parallel out of the housing have the same distance in the direction of the longitudinal axis of the housing as the parallel straight lines.