DDR2 DIMM Socket — 240 Positions, Gold Contacts
The 10005639-11109LF is a 240-position DDR2 SDRAM DIMM socket from Amphenol ICC (FCI), designed for through-hole mounting on a motherboard. The 240-position count is the DDR2 standard — it matches the memory module edge connector and the board footprint, so a BOM check against the memory generation is the first fit gate. Gold contact finish with a thickness of 3.00µin (0.076µm) provides a reliable mating interface for the typical insertion cycles of a desktop or server DIMM slot. The socket conforms to the MO-237 standard, which defines the physical dimensions and keying for DDR2 DIMM modules — ensuring mechanical and electrical compatibility with standard DDR2 memory sticks.
The part is RoHS Compliant, meeting the restriction of hazardous substances directive for electronic equipment. Packaged in a Tray — the standard carrier for through-hole DIMM sockets, suitable for manual or automated board assembly.
The thicker gold on the 11107LF buys higher mating cycle endurance — useful in a test socket or high-service-life application. For a standard DDR2 slot in a consumer or industrial motherboard, the 3.00µin gold on the 11109LF is adequate and the more cost-effective choice.