4-103185-0 is a breakaway header connector from the AMPMODU interconnection system designed for single-row, modular connection applications. This unshrouded header features a 0.100 inch (2.54 mm) centerline spacing and is available in multiple position configurations ranging from 1 to 70 positions. The connector is part of the AMPMODU .025 [0.64] square interconnection system and supports various plating options (Plating A, B, and C) to meet different environmental and performance requirements. The breakaway design allows headers to be broken to the desired number of positions using the optional Tool Kit No. 314818-1, providing flexibility for custom configurations. These headers are commonly used in electronics interconnection, modular assembly, and applications requiring reliable, repeatable connections with standard spacing.