The Amphenol FCI 86840-430HLF is a 30-position dual-row unshrouded header from the BergStik II series, built for board-to-board interconnect on a 0.100" (2.54 mm) pitch. The right-angle through-hole mounting orients the pins parallel to the PCB, which suits edge-to-edge or mezzanine layouts where the mating receptacle sits on a daughter card at 90 degrees to the main board. All 30 positions are loaded with square male pins in phosphor bronze, tin-plated on both the mating surface (100.0 µin) and the solder tail. The black PA6T housing carries a UL94 V-0 flammability rating, and the push-pull fastening means the header relies on the friction of the pin-to-receptacle interface for retention — no locking latch.
Ratings and what they mean for the fit
Rated 5 A per circuit at 110 V. The 5 A figure is a per-contact limit at ambient — in a 30-position header running all circuits simultaneously, the total current through the connector is the sum of the individual loads, but the practical limit is set by the temperature rise of the housing, not the contact itself. The 0.100" pitch provides enough creepage for the 110 V rating without forcing an oversized board footprint, and the tin plating on both mating and post surfaces keeps contact resistance stable for moderate mating-cycle applications. Tin is a good choice for cost-sensitive builds where the connector is mated a handful of times over its life; for higher cycle counts or corrosive environments, a gold-plated variant in the same series would be the better call.
Mounting and assembly considerations
The right-angle through-hole termination places the solder tails on a 0.100" row spacing, matching the mating pitch. The contact length on the mating side is 0.318" (8.08 mm) and the post length is 0.230" (5.84 mm) — these dimensions define the board-to-board stack height when mated with a matching BergStik II receptacle. The unshrouded design means there is no plastic wall around the pins, so the mating receptacle must provide its own alignment; the header relies on the pin-to-receptacle fit alone. On the assembly line, the header is supplied in a bag — no tape-and-reel, so hand-placement or tube-fed insertion is the norm. The UL94 V-0 rating means the housing meets the flame-retardance requirement for equipment inside an enclosure.
Sourcing and lifecycle
The 86840-430HLF carries an Active lifecycle status from Amphenol FCI — full production, no end-of-life notice. No official successor or cross-reference is on record, so the BOM line should reference this exact order code. For a pin-compatible alternative within the same BergStik II family, the 86840-430HL (without the 'F' suffix) is a close sibling — the difference typically lies in plating thickness or packaging, not the footprint or electrical ratings, but verify the specific variant against the mating half before committing.