Lead frame for electrical contact module, electrical connector and contact assembly

The invention concerns an electrical connector a lead-frame and a contact assembly, the electrical connector comprising a housing and a plurality of contact modules in said housing. Each of the contact modules comprises a mating edge and a mounting edge, each mating and mounting edge having a row of contacts. Each mating edge contact is electrically connected to a corresponding mounting edge contact by conductors extending along a predetermined path within the contact module to form a lead frame in each contact module. The conductors of several contact modules are arranged in a matrix of columns and rows when seen in a cross-sectional view through the lead-frame. The connectors in the contact module have different mechanical lengths and individual different widths, the widths of each conductor depending on the conductors mechanical length.