144-pin SODIMM socket for standard memory modules
The 390111-1 is a 144-position SODIMM socket from TE Connectivity AMP Connectors, designed for standard SGRAM or DDR memory modules with a card thickness of 0.050" (1.27mm). The right-angle orientation places the module parallel to the motherboard, keeping the z-height at 0.220" (5.60mm) — a common clearance for laptop and embedded designs. Gold contact finish (10.0µin / 0.25µm) on the mating surfaces resists oxidation through repeated insertion cycles typical of field upgrades or test fixtures.
Board guide and latches for vibration resistance
Integrated board guide and latches align the module edge during insertion and lock it in place — critical in portable equipment where shock and vibration can unseat a memory card.
Surface-mount termination for automated assembly
Surface-mount (SMD) termination suits reflow soldering in high-volume production. The normal, standard-top mounting feature means the connector sits flush on the board without a standoff.