Board-to-wire unshrouded header
The 1-644457-4 is the 14-position member of the TE MTA-100 unshrouded header line, configured for board-to-cable/wire interconnect. Single-row, 0.100" (2.54mm) pitch, through-hole right-angle mounting with solder termination.
The 1-644457-4 is classified Obsolete by TE Connectivity AMP Connectors.
