What this connector is
The Amphenol FCI BERGSTIK II 79425-414HLF is a 14-circuit dual-row board-to-board header in the 0.100-inch (2.54 mm) pitch family — one of the most widely second-sourced header formats in industrial automation and controls. It carries 5 A per circuit at 110 V through square tin-plated phosphor bronze pins, with a push-pull through-hole mounting interface and an unshrouded housing — no polarization boss, so board-level keying must come from the mating receptacle or the layout. The housing is black UL94 V-0 rated — the standard flammability floor for enclosed equipment — and the contacts are loaded all 14 positions, tin-plated to 100.0 µin (2.54 µm) on both the mating and post side.
What the ratings mean for your fit
At 0.100-inch pitch on a dual-row 14-circuit layout with 0.100-inch row spacing, the 5 A per circuit rating handles moderate power distribution or dense signal bus work equally; the 110 V ceiling covers most low-voltage industrial control rails. Tin plating at 100 µin gives decent wear resistance for the mating cycle life the push-pull interface supports, but if the application requires more than a few dozen matings, a gold-plated BERGSTIK variant would be the right move — the 2.54 µm tin is not a high-cycle finish. The insulation height of 0.100 inch (2.54 mm) sets the board-stack separation in a mezzanine or perpendicular board-to-board configuration; verify your z-height budget against this figure before committing.
Sourcing and lifecycle
The BERGSTIK II 79425-414HLF is listed Active with no official successor or cross-reference on record — the part is live and no L* alternate code is mapped. The BERGSTIK II family itself is broadly supported across multiple connector manufacturers at the 0.100-inch dual-row pitch, so a pin-compatible alternate is a sourcing conversation, not a design change — confirm the exact header height, pin protrusion, and housing keying before qualifying any alternate. Packaged in a bag — not on tape-and-reel — so automated placement tooling is not the primary use case; through-hole reflow or hand-solder assembly is the expected build path. The phosphor bronze contact body with tin finish is a standard industrial grade — for regulated environments, confirm RoHS and REACH compliance directly with the manufacturer.