The Molex 2188760064 is a 6-position receptacle from the 5G25 series, designed for high-frequency signal interconnect up to 25 GHz — the "25GHZ" in its description. It uses a 0.014" (0.35mm) pitch, which is fine enough to route dense differential pairs on a compact PCB, but demands careful trace width and spacing in the board layout.
Board Stack and Layout Fit
With a mated stacking height of 0.7mm and a height above board of 0.024" (0.60mm), this receptacle sits low on the PCB — suited for thin-profile mezzanine or board-to-board stacking where the gap between boards is tight. The 2-row arrangement at 0.35mm pitch means the footprint is narrow, but the solder pads need to match the fine-pitch land pattern exactly; a standard 0.35mm-pitch footprint from the 5G25 series application note is the safe reference.