39 Loaded Positions on a 40-Position Header
The 77314-171LF: This BERGSTIK header carries 39 loaded positions out of a 40-position dual-row layout — the one unloaded position is intentional, not a defect. It allows keying against a matching receptacle or routing a power/signal gap without cutting pins.
The tin-plated post (78.7µin) is the cost-optimised side for solder-joint reliability. The gold here buys you hundreds of mates without contact resistance drift.
Board Layout Fit and Termination
Unshrouded header — no shroud to block access, but the pins are exposed and require care during handling to avoid bending. Push-pull fastening; no locking latch, so not suited for high-vibration environments without a secondary retention method.
