The 91910-21425LF is a CONAN® connector assembly header component featuring 25 positions for vertical receptacle mating on printed circuit boards. This lead-free header assembly is manufactured from LCP (liquid crystal polymer) housing with UL-94V-0 rating and copper alloy terminals plated with tin and nickel underplate. The assembly is designed with specific dimensional tolerances per ISO 1302 and ISO 406 standards, with a receptacle height of 0.197 inches [5.00 mm] and overall assembly dimensions optimized for high-density interconnect applications. The component is commonly used in industrial control systems, telecommunications equipment, and consumer electronics where reliable vertical connector mating and lead-free compliance are required.