The Amphenol FCI BERGSTIK II 68020-456HLF is a 56-position, dual-row, 0.100 inch (2.54 mm) pitch unshrouded male header rated 3A per contact across a -65°C to 125°C operating window. Through-hole right-angle mounting makes it a board-to-board interconnect choice in legacy and industrial applications where the wide temperature floor and push-pull fastening profile fit an existing footprint.
Positions, pitch, and board footprint
The 56-position header uses a 0.100 inch (2.54 mm) dual-row pitch; square male pins have a 0.095 inch post length and 0.230 inch mating length. The right-angle through-hole foot sits flush at the board surface.
Contact plating and current duty
Tin plating at 100 µin (2.54 µm) on the mating surface governs both contact resistance and reconnection durability — tin is the choice for solder-side headers where multiple field mating cycles are not the primary concern. The 3A per-contact rating at the stated temperature is the ceiling; derate for elevated ambient per your thermal budget. Phosphor bronze contact material gives the beam some spring compliance to maintain normal force after thermal cycling.
Temperature range and flammability
The -65°C to 125°C operating range covers cryostat and outdoor-equipment enclosures. The UL94 V-0 housing self-extinguishes and does not drip under fault conditions.