AMPLIMITE D-Sub Connector HDP-20 Series 20 DF Snap-In Solder Cup Contacts. AMPLIMITE size 20 DF snap-in solder cup contacts for use with AMPLIMITE HDP-20 series crimp snap in contact d-sub connectors. These size 20 DF snap-in solder cup contacts have a 0.00076 gold plating, a 1.02mm pin diameter and accept a wire size of 18 AWG (1.17mm maximum conductor diameter). For insertion/extraction tool see stock number ; 446-822 446-822