Right-Angle Board-to-Cable Header for MTA-156 Line
The 644751-3: It mates with standard MTA-156 crimp-socket receptacles for board-to-cable/wire interconnects in general-purpose and industrial applications.
The solder tails are also tin-plated for compatibility with standard lead-free wave-solder processes. The square male pins measure 0.390" (9.91 mm) on the mating side and 0.175" (4.45 mm) post length for through-hole soldering into a 1.6 mm typical PCB thickness.
Housing and Environmental Ratings
No official successor or pin-compatible replacement is recorded from TE Connectivity; the 3-position MTA-156 header footprint is standard across the series, so a direct cross-shop candidate would be another 3-circuit, 0.156" pitch, right-angle unshrouded header from the same MTA-156 family.