WR-FFC FFC & WR-FPC ZIF Connectors Würth Elektronik WR-FFC Flexible Flat Cable (FFC) and WR-FPC ZIF Connectors reduce the size, weight, and assembly cost. These types of connectors are increasingly common in several applications, especially where a connection to a small display (screen) or keyboard is needed. WR-FFC cables offer pre-folded products that can be adjusted for different lengths. These pre-folded cables are available in 0.50mm and 1mm pitch in three lengths: 120mm to 200mm, 165mm to 350mm, and 280mm and 500mm.