Board fit and signal routing
The 5103309-8: The 1 A ceiling is well below what the 2.54 mm pitch and brass contact can physically carry, but the gold or gold-palladium mating finish (30.0 µin thickness) keeps contact resistance stable over repeated mate cycles.
Shrouded housing and keying
The keying slot prevents mismating — a receptacle with the matching key profile is required. Push-pull fastening with no locking latch — the shrouding provides the retention.
Sourced through independent distribution.