520425-2 is a single-port modular jack designed for top-entry, thru-hole mounting applications. It features 6 positions with 4 active contacts and delivers Category 3 performance specifications suitable for standard telecommunications and networking applications. The connector is unshielded and does not include panel stops, making it a compact solution for space-constrained installations. With dimensions of 0.535 inches (13.59 mm) in length and 0.650 inches (16.51 mm) in width, this modular jack is ideal for legacy telephone systems, basic data communication interfaces, and general-purpose connectivity where Category 3 performance is sufficient.