What this connector is
The Amphenol FCI 86832-442HLF is a 42-position dual-row BERGSTIK II unshrouded male pin header rated 5 A per circuit at 110 V, designed for board-to-board stacking at 0.100" (2.54 mm) pitch. Phosphor bronze contacts are tin-plated at 100 µin (2.54 µm) on the mating interface, and the black nylon housing carries a UL94 V-0 flammability rating — the two specs that most often decide whether this header passes a harness or panel-build compliance gate.
What the key ratings mean for fit and duty
The 5 A per-contact rating governs power-distribution use — a single circuit comfortably carries 5 A in a wire-to-board harness or board-to-board stack, and the tin plating at 100 µin is appropriate for the higher cycle-count industrial environment this series is specified in. Do not confuse the per-contact headline with the current a fully-loaded 42-circuit row can share across a common bus — check the connector-to-board thermal derating curve in the Amphenol FCI BERGSTIK II product drawing for the actual headroom at elevated ambient. 110 V is the insulation-withstanding voltage rating — for low-voltage signal distribution, this header has generous headroom. The 0.100" (2.54 mm) pitch and 0.100" row spacing give a standard 2.54 mm grid that drops into the majority of through-hole board layouts designed around 0.100-inch headers.
Mating and termination
The push-pull fastening type relies on friction and header geometry — there is no screw-lock or latch. This is appropriate for stable board-to-board mezzanine stacks where vibration is managed by the board assembly, but it is not suited for cable assemblies that experience flex or repeated matings without a locking header variant or separate board-lock feature added to the footprint. Contact length post of 0.100" (2.54 mm) describes how far the square pin protrudes through the board after soldering. The 0.525" overall contact length includes the full pin body from tail to tip. The matching connector is the corresponding BERGSTIK II dual-row IDC receptacle housing or female pin header at the same 0.100" pitch and 42-position count. Confirm the receptacle's housing polarisation keying matches the board layout before specifying — unshrouded headers offer no polarisation built into the header itself.