Board-to-wire fit: 4 positions at 3.50mm pitch
The 1722991104: This is a 4-position, 2-row vertical header from the Molex Ultra-Fit 172299 series, pitched at 0.138" (3.50mm) between contacts. The 0.181" (4.60mm) row spacing sets the board footprint — a 2×2 grid that takes up a compact PCB area. Rated 400V, with a mated stack height of 26.99mm, it's built for power delivery in tight enclosures — think lighting ballasts, industrial controllers, or automotive junction boxes.
Through-hole retention and latch lock
Tin contacts: cost-driven for moderate duty
Tin is a solid choice for applications with fewer than 50 mating cycles in clean, dry environments — it's the cost-optimised finish for this series. The square male pin contacts are copper alloy, housed in a black LCP insulator rated UL94 V-0.