Board fit and routing
The 1722861203 is a single-row, 3-position header on a 3.50mm pitch, which means the board footprint is nine pads across a 10.50mm span. The 0.138" (3.50mm) pitch leaves enough trace width for 600V-rated routing on a standard 2-layer board without needing a tight stack-up. Mated stacking height is 26.99mm — that's the z-height from the board surface to the top of the mated receptacle. Check your enclosure clearance before committing.
Mating and retention
The header is fully shrouded with a 4-wall design, so the mating receptacle is guided in and the pins are protected from accidental bending during handling or rework. The latch holder fastening type provides positive locking — the mating half clicks in and won't back out under vibration. This is the same latch used across the Ultra-Fit 172286 family. The post side is tin with 60.0µin (1.52µm) thickness, which solders cleanly into the plated through-hole.
Sourcing and compliance
ROHS3 Compliant. Housing is Liquid Crystal Polymer (LCP) rated UL94 V-0. Operating temperature range -40°C to 120°C covers automotive underhood and industrial cabinet duty.