Here is a little information on looking at the Flat Flex cable jumpers and figuring the Pitch of the Cable.
DigiKey does carry the Flat Flex cable jumpers. Here are the Jumper cable options.
If you are looking to replace a cable or find one to fit a FFC/FPC connector the Pitch requirement will be important. The Pitch will be the center to center spacing of the conductors on the cable.
The formula used is Cable Width = (# of conductors + 1)(Pitch)
The + 1 is referring to the ends of the cable. Even though there is not a conductor path there the distance has to be taken into account.
Usually the pitch of the cable is not known. It can be a hard measurement to get.
It will be easier to measure the Full width of the cable and then divide by the (# of contacts + 1)
We will adjust it to Cable Width / (# of conductors + 1) = Pitch.
For example - Cable width 5mm, number of contacts 9.
Take the 5mm and divide by the number of contacts (9 +1) this will equal .5mm. The .5mm is now the pitch of the cable.