0.156-inch Pitch, 17-Position Vertical Header with Friction Lock
The 1-644752-7: This is a TE Connectivity AMP Connectors MTA-156 series header, 17 positions, single row, with a 0.156" (3.96mm) pitch — a common footprint for wire-to-board power distribution in industrial and general-purpose equipment. The shrouded single wall and friction lock provide basic polarization and retention against vibration, while the through-hole solder termination keeps assembly straightforward. Rated 600 VAC, with current capacity depending on the wire gauge used in the mating connector — the header itself is not the current-limiting element.
Mating Half and Retention
This header mates with MTA-156 receptacle housings that accept the matching crimp terminals. The friction lock engages with the receptacle latch to hold the pair together under moderate vibration. The tin-on-tin contact interface (mating and post finish) is cost-effective for moderate mating-cycle applications.