40-Position Board-to-Board Plug with Center Strip Contacts
The TE Connectivity 1734100-4 is a 40-position board-to-board plug from the CHAMP.050 I series. The gold flash contact finish suits moderate-cycle signal interconnects where corrosion resistance is needed but full gold plating is not budgeted.
The 40 positions in 2 rows mean the plug occupies a 20-per-row footprint. The through-hole termination requires drilled and plated holes matching the pin diameter; the board lock adds two additional anchor points at the ends of the connector body. The vertical orientation keeps the cable exit perpendicular to the board, which is typical for mid-board routing where the harness runs parallel to the plane of the PCB.