The TE Connectivity 788389-2 is a 40-position SCA-2/SCSI receptacle from the CHAMP.050 I series, built for dense parallel-bus interfaces in server, storage, and telecom backplanes. The connector uses press-fit termination — the compliant pin displaces the plated through-hole wall without solder, which means no reflow profile to manage and easier field rework if a pin gets damaged. Outer shroud contacts surround the mating face, so the signal pins are recessed and protected during blind mating in a card cage.
Press-Fit and Board Retention
Press-fit termination suits high-reliability backplane assemblies where solder joint inspection is impractical and rework access is limited.
For a connector that may be unmated and remated during drive swaps or card replacement, the gold thickness matters more than the headline current rating.