Board stacking in tight enclosures
The Amphenol FCI 93939-438HLF is a 38-position, dual-row BERGSTIK II board-to-board header rated 5 A per circuit at 110 V. The 0.100 inch pitch with matching row spacing gives a standard dual-row footprint; right-angle through-hole mounting makes it a flat-stacked parallel-board candidate. Push-pull fastening provides tool-free mating and demating — the catch holds under vibration without a jack-screw or screw-lock.
Board layout profile
The 0.190 inch insulation height above the board surface defines the standoff in the mated assembly. The 0.120 inch post extends through the PCB; square pin geometry resists rotation in the plated through-hole so the header seats squarely without drift during wave or hand assembly. The unshrouded profile gives full pin access for probing, test points, or manual mating — a practical consideration in service-bay or burn-in-fixture use.