It uses a 0.100" (2.54mm) pitch on both the pin-to-pin and row-to-row spacing, matching the standard grid for legacy ribbon-cable IDC connectors and prototyping boards. Each square pin is phosphor bronze with a 100.0 µin (2.54 µm) tin finish on the mating surface and tin on the solder tail. The 5 A per-contact rating is typical for a 0.100" pitch tin-plated header — adequate for signal-level loads and moderate power distribution within a board assembly.
Mating and Compatibility
The 0.318" (8.08mm) mating pin length provides enough engagement depth for standard box-type receptacles. The 0.318" (8.08mm) post length allows for through-hole soldering on boards up to about 0.093" thick with room for a solder fillet. The 2.54mm pitch is compatible with standard 0.100" IDC connectors, so this header can serve as the board-mount half for a ribbon-cable harness.
