Board-to-Board Stacking Fit
The 71991-304HLF: Gold at this thickness handles 500+ cycles before exposing the nickel underplate — a solid margin for test points, modular subassemblies, or field-replaceable cards.
Position Count and Peer Comparison
Other position variants in the series include 4-position (71991-302LF) and 16-position (71991-308LF), all sharing the same pitch, plating, and stack height — so the same header family can scale across a product line without requalifying the mating interface.
Application Range and Housing
In high-vibration environments, a secondary retention method (board-mount screws or potting) should be considered.