The Amphenol FCI 93690-102-18LF is an 18-position dual-row male header from the BERGSTIK series, on the standard 0.100" (2.54 mm) pitch that defines the board footprint for this class of breakaway header. Rated 5 A per circuit at 110 V, it handles moderate signal and low-power distribution duty — the 5 A figure is per-contact at ambient, so a full 18-circuit load stays within the temperature rise limit of the UL94 V-0 thermoplastic housing. The posts are tin-plated (39.4µin) for reliable soldering or press-fit insertion into plated through-holes.
The 0.100" row spacing (0.100" between rows as well) creates a 2.54 mm grid that matches legacy perf-board and standard DIP footprints. The overall contact length of 0.685" breaks down to a 0.399" mating tail and a 0.177" post — the post length is enough to clear a standard 1.6 mm PCB and still leave solder fillet visible on the bottom side. Termination is listed as both press-fit and solder — the square 0.025" pin works in either process. For press-fit, the pin's corner radius and the plated through-hole diameter need to match the manufacturer's recommended hole size to avoid damaging the barrel. For wave solder, the tin-plated post wets well with standard no-clean flux.