Board-to-Board Mezzanine Connector, 90 Circuits at 0.40 mm Pitch
The Molex 5009130902 is a 90-position receptacle from the SlimStack 500913 series, designed for parallel board stacking in space-constrained portable electronics. Its 0.40 mm pitch and 1.8 mm mated stacking height suit high-density mezzanine applications where every tenth of a millimeter of z-height matters — think smartphone mainboards, wearable displays, or compact camera modules. The two-row, center-strip contact arrangement keeps the footprint narrow while delivering 90 circuits in a single connector.
Solder Retention and Surface-Mount Assembly
Without them, a 90-position SMT connector this dense would shift under paste reflow or shear from the mating cable assembly.