6-534257-0 is a 40-position double-row PCB header assembly with board retention tails, part of the TE Connectivity AMPMODU Mod IV interconnection system. It features a .100 x .100 inch [2.54 x 2.54 mm] centerline pitch with .180 inch [4.57 mm] tail length. The housing is constructed from glass-filled thermoplastic rated 94V-0 for flame retardancy. This header is designed for board-to-board connections in printed circuit board applications where secure mechanical retention is required. The component is RoHS compliant and suitable for various electronic interconnection applications.