5-146256-7 is a single-row vertical header with solder tails, part of the AMPMODU .100 [2.54] centerline square interconnection system. This header features a 0.025 inch [0.64 mm] square post design and is available in various position counts from 2 to 80 positions. The header includes dimensional specifications with C = 0.120 [3.05], D = 0.230 [5.84], and E = 0.185 [4.70] for the specific plating variant. These headers are commonly used in board-to-board interconnection applications where reliable signal transmission is required, and they can be mated with compatible AMPMODU receptacle assemblies.