240-Position DDR2 DIMM – What It Fits
The 10034542-10142LF: This is a 240-position DDR2 SDRAM DIMM socket from Amphenol ICC (FCI), designed for through-hole mounting with a standard top-mount orientation. The 15.0µin gold contact finish provides reliable electrical connection over repeated memory module insertions — typical for server, workstation, and industrial motherboard applications where the DIMM is swapped during upgrades or maintenance. The connector includes a board guide and latches, which help align the DIMM during insertion and lock it in place against vibration or shock. This matters in rack-mount gear where the board sees shipping vibration and the memory must stay seated.
Through-Hole Top-Mount – Board Integration
The through-hole mounting style means the connector pins pass through plated holes in the PCB and are soldered on the opposite side. This gives stronger mechanical retention than a surface-mount DIMM socket, especially important when the board is handled during assembly or the system sees thermal cycling. The top-mount orientation places the DIMM slot parallel to the board surface, with the memory module inserted from above. This is the standard layout for desktop and server motherboards, keeping the memory within the board's z-height budget.
Gold Contact Finish – Mating Cycle Life
It resists corrosion from handling and environmental exposure, and supports hundreds of mating cycles — the DIMM can be inserted and removed many times during system testing or field upgrades without the contact resistance drifting.