50-Position CHAMP .085 Plug for Panel-Mount Harnesses
The TE Connectivity 5552116-1 is a 50-position plug from the CHAMP.085 series, built with center strip contacts arranged in two rows. It terminates via through-hole solder and includes a board-side flange for panel-mounting. This is the vertical solder version, so the board sits parallel to the mating face.
The product status is Active and ROHS3 Compliant.
That thickness supports a high number of mating cycles — well into the hundreds — without exposing the base metal to oxidation. For a connector that gets unplugged during equipment service, that gold layer is what keeps the contact resistance stable over the life of the harness. Tin-plated contacts would fret and rise in resistance long before this one does.
Through-hole solder termination and a board-side flange mean this plug is designed to be soldered into a PCB that then bolts into the panel. The center strip contact style aligns the signal contacts between the plug and its receptacle — no staggered pins to wrestle with during a field swap.