A shielded electrical ribbon cable includes conductor sets each including two or more insulated conductors, each conductor set surrounded by a shielding film, and a first and second non-conductive polymeric films on opposite sides of the cable including cover portions and pinched portions. When the cable is laid flat, S/Dmin is in a range from 1.7 to 2, where S is a center-to-center spacing between nearest insulated conductors of two adjacent conductor sets, and Dmin is the lesser of the outer dimensions of such nearest insulated conductors.