The Amphenol FCI 87901-436HLF is a dual-row 36-circuit male header in the BERGSTIK II series, designed for board-to-board stacking at the standard 0.100-inch (2.54 mm) pitch. The square-pin interface and through-hole push-pull mount suit it for industrial control, instrumentation, and internal equipment interconnects where reliable through-hole retention is required. All 36 positions are loaded, making this the highest-density member of its base product family. The 5 A per circuit rating at 110 V handles signal and moderate-power paths within the same compact dual-row footprint.
Contact finish and what drives the choice
Fastening, insulation, and application fit
The push-pull fastening type refers to the header's square-pin retention in the mating receptacle — it pushes into the housing and pulls free, without a latch or screw. The unshrouded design keeps the footprint compact but requires alignment care during mating. The black insulation is rated UL94 V-0, which satisfies the flammability requirement in most industrial panel and enclosure assemblies. The header mates with the matching BERGSTIK II dual-row receptacle housing. With a 0.100-inch row spacing matching the mating pitch, the two-row stack holds consistent alignment through the board assembly process. The 0.100-inch insulation height sets the mated standoff; confirm this against the board-to-board z-height budget before committing.