What the 68020-458HLF is
The Amphenol FCI 68020-458HLF is a 58-circuit dual-row pin header in the BERGSTIK II series, rated 3A per contact and designed for right-angle through-hole board-to-board stacking at 0.100-inch (2.54mm) pitch. The unshrouded square-pin header accepts the matching BERGSTIK II receptacle or a standard 0.100-inch pitch IDC socket — the push-pull fastening type relies on friction and header retention rather than a locking clip, so verify the mated assembly is protected from vibration or pull-out in the end application. Contacts are phosphor bronze with 100 microinch tin plating on the mating face — heavy tin is the right choice when the assembly will see multiple mating cycles or a long service life, and it solders readily without the reflow concerns that come with gold.
Key ratings for board layout and fit
The 0.095-inch post tail length (from insulation base to lead tip) is standard for wave-solder board attach — confirm your board thickness and solder process window accommodate the through-hole entry without wicking issues on the barrel. The -65 to 125°C operating range covers industrial control boards, automotive under-hood zones, and instrumentation that sees thermal cycling — all positions are populated (no partial-load options on this part number), which simplifies the BOM but means the full 58-contact complement must be used or handled as a fully loaded connector.
Sourcing and lifecycle
The pitch, row spacing, and through-hole footprint are standard 0.100-inch dual-row dimensions — verify that your mating half shares the same 0.100-inch row spacing and that its pin length is sized for the 0.230-inch engagement depth listed on this header.
Where it is used
Board-to-board headers at 0.100-inch pitch are the backbone of legacy instrument racks, industrial control cards, and military/aerospace avionics boxes — the BERGSTIK II series has long served as the interconnect layer between daughtercards and backplane or motherboard assemblies where a card-edge footprint is not used. The UL94 V-0 rated black nylon body handles the flame-class requirements of enclosed equipment enclosures; the tin plating and phosphor bronze contact give solid mechanical retention for permanent installs where reconnect cycles are limited — the fastening type is push-pull, so plan accordingly in any application with cable pull or vibration exposure.