Gold vs tin contact finish
The 5-965906-5 uses gold contact finish, while the sibling 5-965906-1 in the same series and wire gauge uses tin — gold supports more mating cycles in corrosive or low-voltage environments.
Wire gauge options in the series
The 5-965906-5 is specified for 20 AWG; the 5-963715-5 accepts 18-20 AWG, both gold-plated and stamped — select the terminal that matches the wire diameter in the harness.
