The FCI 79821-460HLF is a 60-position, dual-row BergStik II unshrouded pin header on the standard 0.100" (2.54mm) pitch. It's a through-hole solder-terminated board-to-board interconnect — the kind you'd find populating a backplane or a large test fixture where every signal line needs a clean, separable connection. All 60 positions are loaded, so the BOM circuit count matches the pin count directly.
What the ratings mean for your build
The 0.100" pitch is the same grid as a standard DIP IC — your board layout can follow a familiar pattern, and the dual-row footprint leaves room for routing traces between pads. Rated 5A per contact with tin plating on both the mating surface and the solder tail. That 5A is enough for signal-level loads and moderate power distribution, but the tin finish (100 µ" thick on the mating side) means this header is built for a low number of mating cycles — think one-time assembly or occasional rework, not a daily field-service disconnect. The 110V voltage rating covers most low-voltage DC and AC signal rails in industrial and ITE equipment. The housing is rated UL94 V-0, so it's acceptable inside enclosed equipment without a separate flame enclosure — common for rack-mounted gear, control cabinets, and test equipment. The push-pull fastening type means there's no latch or lock; the header relies on the friction of the pin-to-receptacle interface for retention. In a high-vibration environment, you'll want to add a secondary retention method like a wire tie or a locking header.
Sourcing and lifecycle
This part carries an Active lifecycle status from the manufacturer — no end-of-life notice, no last-time-buy clock running. The 60-position count and 0.100" pitch are common across the BergStik II family.