4-position 3.96mm pitch header for wire-to-board
The 3-641119-4: This is a 4-position, single-row header from the MTA-156 series, on a 0.156" (3.96mm) pitch — a common footprint for power and signal distribution in industrial and general-purpose equipment. A friction lock on the housing holds the mating receptacle in place under moderate vibration, reducing the risk of intermittent contact in field applications.
Gold mating surface for reliable connections
The mating contacts are plated with 15.0 µin of gold over a copper alloy base — this thickness is sufficient for repeated mating cycles and corrosive environments where tin would frett or oxidise. The post (solder tail) is tin-plated, which is standard for through-hole soldering and provides a reliable solder joint with common lead-free processes.
Active production with no lifecycle concern
It is ROHS3 compliant and rated UL94 V-0 for the housing material, meeting common regulatory and flammability requirements for equipment inside enclosures.