13-circuit MTA-100 unshrouded header
The 4-644456-3 is the 13-circuit member of TE's MTA-100 unshrouded header line, a board-to-wire interconnect style that mates with MTA-100 IDC receptacles.
Obsolete — sourcing through surplus channels
No pin-compatible drop-in replacement is documented from the original manufacturer.
Position count within the MTA-100 series
Within the MTA-100 series, the 4-644456-3's 13 positions sit between the 10-position 644456-0 and the 14-position 644456-4 — the 0.100" pitch, single-row layout, and tin-plated contact finish are shared across the series, so match the position count to the circuit count of the mating IDC receptacle.