Board-fit and signal routing
The 1-104068-3: This is a 34-position, dual-row header on a 0.050" (1.27mm) pitch — the tightest pitch in the AMPMODU System 50 series. The row spacing is 0.100" (2.54mm), so the overall footprint is 17 positions per row across a 1.27mm column grid. That pitch drives the PCB routing density: traces between pads need a narrow neck, typically 0.15mm to 0.20mm on a standard 1oz copper layer.
