1.50 mm pitch right-angle SMT header for board-to-cable assemblies
The 5-1775444-9: This 9-position single-row header from the High Performance Interconnect (HPI) series mates with a cable-mounted receptacle, making it a board-to-cable/wire interconnect. The 1.50 mm pitch sets the PCB footprint density and the per-contact current ceiling — at 3 A the temperature rise stays within the UL94 V-0 thermoplastic housing limit.
Tin-plated contacts rated 3 A at 250 VAC
The 3 A current rating at 250 VAC is typical for signal-level interconnects; the square male pins (brass) accept the matching crimp receptacle.
Shrouded 4-wall housing prevents bent pins
Insulation height is 0.175" (4.45 mm), and the mating pin length is 0.106" (2.70 mm) — these dimensions define the receptacle engagement depth.