Board-fit and signal routing for a 6-position breakaway
The 5-146278-6: Unshrouded design means the mating receptacle sits flush against the header base — no wall to guide alignment, so the board layout needs to account for the 0.230" (5.84mm) mating pin length when stacking against a cable or another board. Rated 3 A per contact with a UL94 V-0 LCP housing, this header handles signal-level current in environments from -65°C to 105°C — think industrial control cabinets or outdoor telecom enclosures where the temperature swing is wide but the current per circuit stays under 3 A.
The 5-146278-6 is unshrouded and vertical — the choice comes down to whether the application needs the alignment wall and latch holder (shrouded) or a lower-profile, breakaway style for board-to-board or cable mating where the receptacle provides its own alignment.
The 0.440" (11.18mm) overall contact length gives enough standoff for a wire-to-board or board-to-board connection with a 0.230" (5.84mm) mating pin engagement.