100-Position Free Height Receptacle for Tight Stack-Up Budgets
The TE Connectivity 1735481-4 is a 100-position receptacle from the Free Height (FH) series, built for parallel board-to-board mezzanine connections where the gap between boards is fixed at 17 mm. Outer shroud contacts mean the mating plug carries inner contacts; this is not a standard open-pin-field socket, so verify the mating half against the FH plug family.
17 mm Stack Height — the Z-Budget Anchor
The mated stack height of 17 mm is the single dimension that decides if this part fits the enclosure gap. At 15.75 mm above the board unmated, the receptacle stands tall on the PCB — account for the plug height on the opposing board to hit the 17 mm total. Surface-mount termination keeps the assembly reflow-friendly, but the height means the part is not a low-profile mezzanine; it is sized for applications where the board spacing is generous enough to accommodate the full FH stack.