Hermaphroditic Board-to-Board Connector, 2 Positions
It carries a 0.157" (4.00mm) pitch, rated 6 A per circuit at 125 V, with tin-plated copper alloy contacts. The housing is natural Liquid Crystal Polymer (LCP) with a locking ramp that snaps into place for vibration-resistant retention. Mounting is flexible: board edge, surface mount, or right-angle orientation, all solder-terminated, suiting it for parallel board stacks or perpendicular mezzanine links in space-constrained enclosures.
What the 4.00mm Pitch and Hermaphroditic Design Mean for Your Build
The 0.157" (4.00mm) pitch is wider than the sub-1 mm pitches common on high-density mezzanine connectors, which means you get easier trace routing between pads and more room for thicker PCB layers without impedance headaches. The hermaphroditic nature is the real time-saver: one part number covers both sides of the board stack, so there is no risk of mismatching male and female halves during assembly.
Position Count Options: 2 vs 4
The 2154640-1 is the 2-position member of this hermaphroditic series. The 2154640-2 is the 4-position sibling at the same 0.157" (4.00mm) pitch, same 6 A rating, same tin finish and locking ramp. If your BOM calls for 4 circuits, the 2154640-2 is the direct match without changing footprint or mating half.