The 1053141204: The 2.50 mm pitch and 2.50 mm row spacing set the PCB footprint for a compact, high-density layout — each circuit occupies roughly 6.25 mm² of board area, which is tight for a through-hole part but leaves room for trace routing between pads. The LCP housing holds its dimensional stability across the full range, and the 15 µinch gold mating finish supports repeated mate/unmate cycles — field-serviceable without contact degradation over the product's service life.
Contact Plating and Termination — Signal vs Power Duty
For applications requiring higher current, the tin-plated sibling in the same series (with thicker gold or silver plating) would be the correct choice.
The post length is 0.138 inch (3.50 mm), which fits standard 1.6 mm thick PCBs with adequate through-hole solder fillet. A board guide feature is integrated into the housing — this aligns the header during placement and prevents skew during reflow or wave soldering, improving positional accuracy for automated pick-and-place.