Flexible Flat Cable (FFC) refers to various flat and flexible cables. Flexible flat cable is a kind of flexible electronic device. However, FFC generally refers to the extremely thin flat cables found in high-density electronic applications such as notebook computers and cell phones.
FFC specifications:
1>Pitch
The spacing of the conductors. Pitch usually refers to the distance from the center of a wire to the center of an adjacent wire. A single FFC can have different pitches between different conductors of the same cable, but this is not common. FFC cables have many pitches to choose from, such as 0.500 mm, 0.625 mm, 0.635 mm, 0.800 mm, 1.00 mm, 1.25 mm, 1.27 mm, 2.00 mm, 2.54 mm, but the most common pitches are 0.500 mm and 1.00 mm.
2> Type
Some cables (Wurth Electronik calls them Type 1 cables or Molex calls them Type A cables) have exposed contact points on the same side at both ends. Other cables (marked as Type 2 or Type D) have contacts on opposite sides of the cable (so if the cable is laid flat, one end will have contacts facing up and the other end will have contacts facing down) .
3> Exposure length
The length of the electrical contact exposed at the end of the cable.
4>Stiffener
Most FFCs have some sort of extra material attached on the opposite side of the exposed length of the cable to facilitate ZIF or LIF connections.
5>Conductors size
The width and thickness of the conductors.