The 0.156" (3.96mm) pitch matches the standard MTA-156 header pin field, and the closed-end housing prevents the wire from pushing through the IDC slot during termination — a detail that saves rework time on the harness bench.
The 18 AWG wire gauge is specified for the slot geometry; using a different gauge risks an intermittent or high-resistance connection. The closed-end feature acts as a positive stop, so the wire bottoms out at the correct depth every time. For ribbon cable, the same IDC slot accepts the conductor without modification.
Mating and Housing Fit
This receptacle mates with the standard MTA-156 header (through-hole or vertical, 0.156" pitch). The single-row, 5-position layout is keyed by the housing geometry; verify the header's position count and polarization before committing the BOM line.