What bolts in: 3-position MTA-100 header with friction lock
The 3-647050-3: The shrouded 1-wall design and friction lock keep the mating half seated under moderate vibration — no secondary latch needed for a fixed installation. The tin-plated male pins give adequate corrosion resistance for indoor general-purpose use. The UL94 V-0 nylon 4T housing handles internal equipment fire safety requirements.
Footprint fit: 0.100" pitch, through-hole, single row
The 0.100" pitch matches standard ribbon cable and MTA-100 IDC receptacles. Overall contact length is 0.550", with a 0.290" mating length for reliable contact wipe.
Sourcing: active production, quoted per BOM line
RoHS3 compliant. The base product number is 647050 — use it for series-level documentation and mating half cross-references.