3.50 mm Pitch, 4 Circuits — Power-Delivery Header
The 1722992104: This is a 4-circuit, dual-row header from the Molex Ultra-Fit 172299 series, pitched at 3.50 mm between contacts. The 3.50 mm pitch is wider than typical signal headers (2.54 mm or 2.00 mm), which means the board trace routing is less dense but the per-contact current ceiling is higher — the header is built for power delivery, not signal multiplexing. The 400 V voltage rating and the shrouded 4-wall design confirm this is a power-distribution interconnect, not a low-voltage signal connector. The mating finish is 60 µinch tin over copper alloy — a thick tin layer that provides good corrosion resistance for moderate mating-cycle applications (typically 25–50 cycles).
Confirm that the enclosure or adjacent components clear this height before committing the layout.
The base product number is 172299, which covers the full Ultra-Fit 172299 header family. If the 4-circuit variant is unavailable, a 6- or 8-circuit sibling in the same series shares the same pitch and mating interface — but the circuit count must match the BOM position count exactly.