643415-1 is a Universal MATE-N-LOK socket header connector designed for 6-circuit duplex wire-to-board applications. This connector features a standard tail configuration with pre-tin plating and is rated UL94V-2 for flammability. The connector has an A dimension of 1.050 inches (26.67 mm) and is compatible with Universal MATE-N-LOK plug housings using pin contacts. The socket header assembly is engineered for reliable mating with corresponding plug connectors in multi-circuit power and signal distribution systems. These connectors are commonly used in industrial control systems, appliances, and power distribution applications where robust, repeatable connections are required.