The closed-end housing prevents wire insertion from the wrong side, which helps maintain assembly consistency on the line.
If your application sees repeated disconnect/reconnect in the field, tin frets and contact resistance drifts—gold would be the better call, but this part is tin only. The wire gauge window is tight: 26-28 AWG. If your harness uses 24 AWG or 30 AWG, this receptacle won't work; you'd need a different contact or a crimp-style version. The IDC termination is a production-speed play—strip, align, and press. No individual contact crimping, which saves labor on high-volume builds. But IDC is less forgiving of wire insulation thickness variation than a crimp barrel, so confirm your wire's OD falls within the slot geometry before committing the BOM line.