The Amphenol FCI 79425-146HLF is the 46-position member of the BERGSTIK II dual-row header series, a standard 0.100 inch (2.54mm) pitch board-to-board connector designed for vertical stacking in industrial and instrumentation applications. Square male pins rated 5A per contact at 110V with 30.0 µin (0.76 µm) gold plating on the mating interface sit in an unshrouded push-pull housing — the bare pins and through-hole tail suit headers paired with matching dual-row receptacles in backplane-daughtercard or mezzanine configurations where circuit count drives the fit decision over keyed shrouding.
Push-pull fastening on an unshrouded header relies on header-pin entry into a receptacle housing — mis-mate protection comes from the housing keying and pin count, not from a shrouded guide rib on the header itself. The phosphor bronze contact material provides resilience under vibration while maintaining spring integrity in the through-hole solder tail. Black glass-filled polyester housing meets UL94 V-0 flammability requirements, and the bag packaging reflects the standard industrial pack quantity for this connector series.