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FFC, FPC (Flat Flexible) Connectors

Flat flexible connectors (FFC and FPC) have become increasingly popular in modern device connections due to their cost-effectiveness and reliability. This type of connector is found in many electronic devices such as computers, smartphones, medical devices, and industrial robots. FFC and FPC connectors provide a secure mechanical connection between two circuits and enable the low-cost, high-speed data communication. They are IPC/EIA-compliant and offer a broad range of mounting styles.

FFC and FPC connectors are typically composed of a plug (male)and a receptacle (female) part, and flexibly connect printed circuitry (PCB) or cables. The highest performance connectors can handle up to 500V and operate at frequencies up to 67GHz. The FFC and FPC connectors can vary in pitch size with the smallest being 0.031” and the largest 0.100”. There are 6 connector orientations with 3 basic methods of contact creating 18 unique contact arrangements.

Applications

FFC and FPC connectors can be used in various applications where connecting a PCB to another board or cable is required. Some of the most popular applications include:

• Computers, Desktop and Laptops
• Smartphones, Wearables, PDAs, Tablets.
• Medical Imaging and Diagnostic Equipment
• Industrial Robots and Automation.
• Consumer Electronics.
• Test & Measurement Systems.
• System Controllers.
• Military Applications.
• Avionics and Navigation.
• Automotive.

Working Principle

When mating an FFC or FPC connector, metal contacts located on the male and female connector sides are brought into contact. The contact structure can vary from contact points made from stamped metal pins to Infrared solder points with various plating technique offering superior performance. The FFC and FPC connectors do not require much force when engaging or disengaging, making them easy to use and handle. With the proper design and selection, FFC and FPC connectors can also withstand strong vibrations and other rugged environment conditions.

The FFC/FPC materials and components must meet strict quality requirements to ensure reliability. Furthermore, In order to protect the metal contacts from oxidation, it is important to have the correct material combination for both the contacts and housing. Therefore, FFC and FPC connectors need to be tested for EMI shielding, pinout retention, to withstand vibration. environmental and temperature stress to guarantee optimal performance.

Conclusion

FFC and FPC connectors have made a major difference in the way the electronic industry connects two circuits. Their low cost, low profile design, and high speed communication properties make them the ideal choice for devices requiring cables to be connected. Due to their small physical size and flexibility, they have become an invaluable part of modern electronics.

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