FCI Basics 0.21mm pitch flex connectors utilize 0.21mm contact spacing & possess the lowest height making them suitable for applications where board space is at a premium. HFW series of connectors have no-flip Low Insertion Force (LIF) for strong FPC retention and come with a profile of 0.5mm. FCI Basics has been the first in the industry to offer less than 1mm height for its flex products.