The FCI 78511-410HLF is a 10-position unshrouded male pin header from the BERGSTIK® II series, designed for board-to-board interconnect on a standard 0.100" (2.54 mm) pitch grid. It is a single-row, through-hole solder part with all positions loaded, making it a straightforward fit for any PCB layout that calls for a basic breakaway-style header. The tin-plated phosphor bronze contacts are rated 5 A per circuit, which is the typical signal-level current for this class of connector — adequate for logic-level power and I/O lines, but not intended for high-current bus distribution.
Key specs and what they mean for the build
The 0.100" pitch matches the industry-standard grid, so the footprint is compatible with a wide range of mating receptacles and prototyping boards. The 100.0 µin (2.54 µm) tin plating on the mating surface is thick enough for occasional mating cycles in a permanent or semi-permanent installation — think cable-to-board harnesses that get mated once at the factory and rarely disconnected in the field. Tin is a cost-effective choice for static assemblies; if the application requires frequent reconnection or operates in a corrosive environment, a gold-plated sibling in the same series would be the better call. The through-hole solder termination gives a mechanically robust joint that survives thermal cycling and vibration better than a surface-mount part of the same size. The 0.120" (3.05 mm) post length is a standard dimension for soldering into a typical 1.6 mm thick PCB. The UL94 V-0 rated black housing means the connector meets the flammability requirement for equipment installed inside an enclosure — no special handling needed for compliance. Operating temperature range of -65°C to 125°C covers automotive under-hood, industrial cabinet, and outdoor telecom environments. The wide span means the connector's mechanical and electrical performance is stable across the full range — no derating needed unless the board itself has thermal limits.