The TE Connectivity MTA-100 4-640442-5 is a 15-position IDC receptacle designed for mass-termination of discrete or ribbon cable. It terminates 26 AWG wire via the insulation-displacement slot — no stripping, no crimping. The 0.100" (2.54mm) pitch matches the standard MTA-100 header footprint, so the board layout is a known quantity if you have used this series before.
The 0.100" (2.54mm) pitch sets the board footprint — the same spacing as the standard 0.100" header row, so no surprises for layout. The closed end at position 15 means the last cavity is blocked, preventing a mis-seated terminal or partial insertion at the end of the row.