The 57202-G52-25ULF: This 50-position, dual-row unshrouded header on 2.00 mm pitch packs 25 signal pairs per row into a board footprint that routes cleanly on two-layer PCBs — the row spacing matches the pitch, so trace fan-out between rows stays within a standard 0.5 mm trace/space design rule.
Gold GXT Mating Surface — Field-Service Grade
Surface-Mount Termination — Reflow Process Note
Termination is SMT solder — no through-hole pins to clinch, so the board-side pad layout is a simple two-row pattern with no plated-through holes.