The 77311-118-10LF: The 10-position single-row layout keeps the board footprint narrow, and the 0.230" (5.84mm) mating pin length gives enough reach to engage a receptacle's contact beams without bottoming out.
The housing carries UL94 V-0 flammability rating, which satisfies the enclosure fire-safety requirement for most commercial and industrial equipment.
The 77311-118-10LF is one of several position variants in the BERGSTIK® unshrouded header family. The closest sibling is the 77311-118-16LF with 16 positions — same pitch, same 0.450" overall pin length, same gold mating finish. The choice comes down to the number of signal lines the board needs.
The post side is tin-plated (78.7µin), which solders reliably to the board. Phosphor bronze base metal gives good spring retention over the temperature range.
