The FCI 67998-454HLF is a 54-position unshrouded male pin header from the BERGSTIK® II series, arranged in two rows on a standard 0.100" (2.54mm) pitch. Key specs include a 5 A per contact current rating, tin plating on both the mating surface (100.0 µin thick) and the solder tails, and a UL94 V-0 flammability-rated black insulator. The push-pull fastening type keeps the mating interface simple — no locking latches, which suits applications where the header is soldered as a permanent board mount and the mating half is retained by friction.
The overall contact length of 0.525" (13.34 mm) breaks down into a 0.318" mating length and a 0.107" post length — the board layout engineer needs the post length to confirm the header sits flush after wave solder, and the mating length to verify the receptacle's pocket depth is sufficient.