0.100" pitch, 12-position dual-row — what the gold means on the bench
The 5-534206-6: In a production harness where the board and cable are mated once and left, that is overkill; in a test fixture or field-serviceable assembly where the connector sees quarterly reconnects, it buys you decades of reliable contact resistance. The 2 A per-contact rating is conservative for the 0.100" pitch and phosphor bronze contact spring; the real current ceiling is set by the number of adjacent circuits carrying full load and the ambient temperature, which the -65°C to 125°C operating range brackets comfortably.
How it stacks against the 5-position sibling
The 5-534206-6 gives you 12 positions in a dual-row layout and 30 µinch gold — four times the plating thickness, which translates to roughly four times the mating cycle life before the gold wears through.