What this connector is
The Amphenol FCI 79821-160HLF is the 60-circuit member of the BERGSTIK II dual-row header series — an unshrouded, square-pin board-to-board header rated 5 A per contact at up to 110 V. All 60 positions are populated, the contact mating length is 0.430 inch (10.92 mm), and the contact finish is Gold or Gold GXT at 30.0 µin (0.76 µm) — a heavier plate than the entry-level tin option in the same series, which translates directly to higher mating cycle durability. The push-pull fastening is friction-lock style; it holds mated under light vibration but does not carry the positive locking retention of a latch-and-housing pair.
Board footprint and stacking
At 0.100 inch (2.54 mm) pitch with 0.100 inch row spacing, the 79821-160HLF lands on a standard 0.100 inch grid — compatible with the full BERGSTIK II receptacle family and with most dual-row 0.100 inch IDC or pin-header mating halves in the market. The dual-beam contact geometry and square pin shape hold alignment through the mating cycle without the compliance window of a round-pin header. The 0.100 inch insulation height defines the mated stack profile; plan your z-height budget accordingly if stacking boards in a mezzanine arrangement.
What it is used for
Sourcing
Listed Active — quoted to order against the BOM quantity. No official successor or cross-reference for the 79821 base product number. Confirm the 60-position count against your BOM line before committing; the BERGSTIK II series carries multiple position counts in the same footprint and the count is the primary differentiator across siblings.