Crimp Ferrule for AMPLIMITE HDP-20 D-Sub Backshells
The TE Connectivity 7-745129-4 is an inner ferrule from the AMPLIMITE HDP-20 series, designed for use with D-subminiature connectors. It serves as the crimp-on strain relief component that fits inside the backshell, clamping the cable jacket to prevent pull-out forces from reaching the solder or crimp terminations. This ferrule accommodates both 25 and 50 position connector shells, giving a single part number coverage for two common shell sizes.
Position Fit and Shell Compatibility
The 7-745129-4 covers two position counts — 25 and 50 — meaning the same ferrule works with standard DB-25 and DB-50 shell sizes. This dual-position compatibility simplifies inventory for shops that build both cable assemblies. The ferrule is intended for use with AMPLIMITE Series D-sub connectors, so confirm the backshell inner diameter matches the cable OD before crimping.