D-Sub Plug Housing for 9-Position Male Contacts
The TE Connectivity AMPLIMITE HDP-20 1658642-1 is a D-sub plug housing designed to accept male crimp contacts. It carries 9 positions arranged in 2 rows, matching the standard DE-9 shell layout (shell size 1). The shell is steel with a tin finish (200 µin / 5.08 µm thickness) and features grounding indents that mate with the receptacle shell to bleed shield current before the signal pins engage, reducing EMI susceptibility in shielded cable assemblies.
What the 4-40 Flange Means for Your Assembly
The cable-side flange carries a 4-40 threaded insert — the standard UNC thread for DE-9 D-sub connectors. This accepts a mating jack-screw or screw-lock from the receptacle side, or a backshell with 4-40 standoffs. The flange is on the cable side, meaning the threaded hole faces the cable exit; the mating receptacle typically has a clearance hole for the screw. This arrangement is common for in-line cable assemblies where the plug is the free-hanging half.
Grounding Indents and Shield Termination
Grounding indents on the shell provide a metal-to-metal contact point between the plug and receptacle shells when mated. This establishes a low-impedance path for shield currents before the signal pins make contact, which is critical for maintaining shield continuity in EMI-sensitive applications. The tin-plated steel shell (200 µin / 5.08 µm) offers adequate corrosion resistance for indoor industrial and commercial environments.