TE Connectivity HDP-20 Crimp Contacts. The TE Connectivity HDP-20 series of connector contacts are designed for the AMPLIMITE D-Sub connector system. This range of size 20 DF contacts is available in both pin and socket options. Contact size: 20DF Pin diameter: 0.04 (1.02) Gold plated for quality. Compatible Tools: Crimp Tool – ; 446-816 446-816 Insertion/Extraction Tool – ; 446-822 446-822