BergStak 0.40mm — 90-Position Fine-Pitch Receptacle
The Amphenol FCI 10164227-0901A1RLF is a 90-position receptacle from the BergStak® 0.40mm series, designed for high-density board-to-board stacking. With a 0.016" (0.40mm) pitch and 1.5mm mated stack height, it suits compact portable electronics where z-height and routing density are tight. The dual-row center strip contacts are gold-flashed, and the connector is surface-mount for automated assembly.
At 0.40mm pitch, the footprint demands fine-line PCB routing and micro-via or HDI escape; the 90 positions pack a lot of signals into a small board area.
For applications requiring frequent reconnection, a thicker gold plate is preferred; the flash grade here is cost-optimised for one-time or low-cycle use.