Stepped Ferrule for DB37/50 D-Sub Shells
The TE Connectivity 2-747580-3 is a stepped outer ferrule designed for use with AMPLIMITE Series HD-20, HDE-20, HDP-20, and HDP-22 D-subminiature connectors. It fits both 37- and 50-position shell sizes, bridging the cable jacket to the backshell for strain relief and shielding continuity. The ferrule is shielded, meaning it completes the EMI/RFI envelope when used with a compatible metal backshell — a detail that matters in industrial or data-communications environments where radiated emissions limits apply.
Position Range and Shell Fit
This ferrule covers the 37 to 50 position range, so it works with both standard DB37 and DB50 backshells. The stepped profile accommodates the larger cable bundle typical of 50-position assemblies while still seating correctly on a 37-position shell.