It uses a 0.100" (2.54 mm) square-pin grid — the same pitch as legacy 0.100" ribbon-cable IDC systems — making it a direct board-to-board interconnect for standard footprint layouts.
The 5 A per-contact rating is typical for a 0.100" square-pin header; the real limit is the total current across all pins at the temperature-rise ceiling of the UL94 V-0 glass-filled nylon housing.
Deployment context
The unshrouded header means no polarisation key or latch; the mating half must provide its own retention.