The Amphenol FCI 10162583-411111LF is an 11-position plug from the Conan™ MezzSelect™ series, built as a right-angle surface-mount mezzanine connector with center strip contacts. The 0.039" (1.00 mm) pitch and 0.211" (5.35 mm) height above board define the board-to-board stack — this plug mates with a matching Conan receptacle to bridge two parallel PCBs at a fixed 5.35 mm gap. It carries gold-flash contacts across two rows, which is enough for a single mate-and-forget assembly but not for repeated reconnection cycles.
Position Count and the BOM Line
11 positions is an odd count — not a standard power-of-two signal group. That means this plug was specced for a specific circuit count on the board. The same Conan MezzSelect family also offers 31-position (10162583-411131LF), 41-position (10162583-411141LF), and 51-position (10162583-411151LF) variants at the same 0.039" (1.00 mm) pitch and 0.211" (5.35 mm) stack height. The only difference between them is the position count, so the selection comes down to matching the BOM line exactly. No other spec changes — same gold flash, same right-angle SMT footprint class.