Can FFC and FPC replace each other?

Can FFC and FPC replace each other?

• 2025-03-17 10:45:32
• by Admin

Many people ask whether FFC and FPC can replace each other.

Those who ask this question must not know much about this industry.

At the moment or in the future for a long time, ffc cables and fpc cables on either side can not replace each other; these two kinds of cables will coexist with each other and complement each other.

Many friends and even some involved in the field of ffc wiring time is not long friends of our conclusions do not think, the following I will analyse accordingly:

FFC wiring and fpc wiring process is obviously different, fpc soft wiring is the upper and lower two layers of hot melt PET film or PI film will be a set of flat copper wires in accordance with a specific spacing arrangement in the high temperature wheel under the press and become.

And fpc wiring is achieved by covering a whole layer of copper film on PI film and forming different line structures by etching.

1. The complexity of the line structure is different between fpc wiring and fpc wiring. Fpcc wiring is the first choice for complex curved line structures, while ffc wiring can only form straight lines. In the formation of complex curved line structures, the inevitable choice is fpc wiring. Comparatively speaking, fpc wiring is softer than ffc wiring.
2. The temperature resistance of FPC cables is different from that of FPC cables. General to PET as the base material of the hot melt adhesive film made of fpc cable temperature resistance is only 80 ℃ or 105 ℃, while the PI as the base material of the hot melt adhesive film made of fpc cable can withstand temperatures of 120 ℃. However, the temperature resistance of FPC cables can be more than 200 °C. Therefore, FPC cables are better than FPC cables. Therefore, fpc cables are more resistant to high temperatures than ffc cables.
   If you only look at the above two points, it seems that fpc cables can kill ffc cables; in front of fpc cables' powerful functions, ffc cables seem to be only to the grave this way. Is this the case? No, it is not! Please continue to see the following two points:
3. The cost of FFC cable and FPC cable is different. Fpc cable's line can be made into a curve structure can also be made into a straight line structure, but no matter how simple the structure of the line of Fpc cable, each specification has to open the mould, while the FFC cable does not need to open the mould, the cost of looking at a large amount of savings.
4. The efficiency of FFC and FPC wiring is different. FFC wiring production efficiency is very high, while the FPC wiring, due to the complexity of the process, is more, and the efficiency of the FPC wiring and FPC wiring is very low compared to the production efficiency. In addition, if it is some simple curve structure, it can be solved by FFC wiring folding, and there is no need to make FPC wiring.
5. The conductor of fpc wiring is etched with the whole layer of copper foil, and the thickness of copper foil is generally as follows: the thickness of copper foil for the single panel is 12U, 18U, 35U; the thickness of copper foil for the double panel is 12U, 18U, 35U, 70U. Therefore, for single panel fpc wiring, the thickness of copper foil can only be 35U at the most. The thickness of the conductor of the ffc wiring can be 35U, 50U, 50U, 50U, 50U, 50U, or 70U. 35U, 50U, 100U. If the end demander wants the conductor to be able to pass large currents, the impedance of the conductor must be small, a conductor with a large cross-sectional area must be used, and it is generally not desirable to have the conductor too far away so that the relative thickness of the ffc wiring can show the advantages of the conductor.

In short, ffc wiring and fpc wiring for the time being who can not replace who, is to long-term coexistence, both play a role in connecting everything.

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