Board Layout Fit: 0.198" Pitch and Partial Loading
The 10-18-1040: The 0.198" (5.03 mm) pitch is the primary dimension for PCB footprint layout and mating compatibility — this is not a standard 0.100" or 5.00 mm grid, so the board pattern must match exactly. The housing carries 4 positions but only 2 are loaded with male pins. That means the BOM circuit count is 2, not 4 — confirm the application needs exactly two signal or power lines before committing the line item.
Mating and Shrouding
This header mates with a Molex 3099-series receptacle housing (same series) — confirm the mating half order code from the series catalog.
