The Amphenol FCI 86837-158HLF is a 58-position, dual-row unshrouded header from the BERGSTIK II series, on the standard 0.100" (2.54 mm) pitch. The 0.100" insulation height and 0.380" mating contact length set the stack height budget for the mated pair.
The 58 positions are fully loaded across two rows at 0.100" pitch, with a row-to-row spacing of 0.100" (2.54 mm). The through-hole solder tails extend 0.120" below the insulation body — the board footprint needs a 0.100"-pitch dual-row header pattern with plated through-holes. The 0.600" overall contact length means the mated stack height is governed by the receptacle's insulation height plus the 0.380" pin exposure.
The square male pins accept a standard BERGSTIK II receptacle or any 0.100"-pitch dual-row female socket housing.
