4.00 mm Pitch Sealed Header for Harsh Environments
The 776262-2: Sealed construction with a mounting flange means this header is intended for panels that see washdown or outdoor exposure — the seals keep contaminants out of the contact interface. The locking ramp fastening provides a positive mechanical lock against vibration-induced disconnection, a common failure point in automotive and industrial equipment.
Pitch, Position Count, and Row Configuration
Mating pitch is 4.00 mm (0.157") with an identical row-to-row spacing of 4.00 mm, giving a uniform grid that simplifies PCB layout and harness routing. Three rows mean the connector body is taller than a dual-row equivalent, but the 4.00 mm pitch keeps the overall width manageable. For a board layout engineer, the through-hole solder termination requires plated through-holes on a 4.00 mm grid — no fine-pitch routing needed.
Sealing, Retention, and Material Choices
The sealed feature with a mounting flange indicates the housing incorporates a perimeter seal that mates with a corresponding panel cutout, preventing ingress at the mounting interface.