What this connector is
The Amphenol FCI 79425-404HLF is the 4-circuit member of the BERGSTIK II unshrouded dual-row header family — a through-hole board-to-board pin header rated 5 A per circuit at 110 V. The housing is black PA nylon (UL94 V-0), the contacts are phosphor bronze with square pins, and the mating and post interface both carry 100 µin of tin plating — heavier than the typical 100 µin spec on many series peers, which gives the contact interface better wear resistance across reconnect cycles.
What the ratings mean for your layout
The 5 A per-contact rating is the design limit at this pitch — current per circuit, not a total bus rating.
Sourcing and what to confirm before you order
The 79425-404HLF is Active in production. The base product number 79425 maps to this 4-position dual-row configuration. Confirm the position count and plating grade against the series datasheet before ordering.