The 3-647630-5 is a 5-position, single-row, through-hole right-angle pin header from the TE MTA-100 series. It mates with the MTA-100 IDC receptacle family, making it a three-part system: this header, the matching housing, and the crimp terminal that drops into that housing. The 0.100" (2.54mm) pitch is the standard spacing for the MTA-100 wire-to-board system, so the footprint on the PCB is a direct match for the mating IDC connector.
Right-Angle Orientation and Shrouding
The single-wall shrouding protects the mating interface on one side, leaving the other side open — this is a partial keying that guides the receptacle but does not fully enclose the pins.
