641968-1 is a 4-circuit pin header connector part of the Universal MATE-N-LOK connector family, designed for wire-to-board power and signal applications. This connector features a standard tail configuration with pre-tin plating and is rated UL94V-0 for flammability. The pin header has a standard tail length of 0.175 inches (4.45 mm) suitable for 0.062 inch (1.57 mm) thick PCBs, with an A dimension of 1.050 inches (26.67 mm) between the first and last pin. The connector is designed to mate with corresponding plug housings and is part of a duplex-capable connector system that supports various circuit configurations. This connector is commonly used in appliance control circuits, power distribution modules, and industrial equipment where reliable, compact interconnections are required.