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Flat Flex, Ribbon Jumper Cables

Flat flex and ribbon cables are commonplace in industries such as manufacturing, data storage and communications. They often serve as versatile interconnects between boards and other sensitive components. With multiple configurations and sizes, flat flex and ribbon cables are useful in a range of applications.

Flat Flex Cables (FFCs)

Flat flex cables (FFC) are flexible flat cables with two or more electrical conductors that are used in board-to-board connections. FFCs are typically manufactured with a polyethylene or polyurethane base film. The cables may either have one or more flat, parallel, electrically insulated conductors or may have multiple layers of conductors separated by insulation layers. They usually have a pitch of 0.2 millimeters or less.

Ribbon Cables (Jumper Cable)

Ribbon cables (also known as jumper cables) are flat cables with multiple electrical conductors arranged in parallel. They are commonly used for board-to-board and board-to-component connections. Just like FFC, they are typically made from polyethylene or polyurethane base film. Unlike FFCs, ribbon cables have a larger pitch than the 0.2mm of a typical FFC.

Application Fields of Flat Flex and Ribbon Cables

Flat flex and ribbon cables are used in many industries for various purposes including, but not limited to, the following:

• Data storage applications
• Computer and telecommunications
• Industrial equipment and control systems
• Medical device design
• Automotive and aerospace
• Avionics
• Consumer electronics

Working Principles of Flat Flex and Ribbon Cables

At the basic level, a flat flex cable consists of a pair of conductors arranged in parallel, separated by an insulating material and held together by a dielectric. The conductor pairs are not electrically connected and carry the signal in parallel. Ribbon cables, on the other hand, consist of multiple conductors arranged in parallel connected to each other in series. The multiple conductors usually form the same type of electrical connections as their flat-flex counterparts.

Flat flex and ribbon cables differ in one important way though. Flat flex cables usually have a pitch of 0.2 mm or less, while ribbon cables have a larger pitch. This means that flat flex cables are often used in higher density applications, such as when connecting between two boards. Ribbon cables, on the other hand, are used to connect two components, such as two tapes in a tape drive, or two drives in a computer system.

Conclusion

Flat flex and ribbon cables are versatile interconnects used in a variety of industries. With the right configuration and design, these cables can provide reliable, high-speed connections in applications ranging from data storage to automotive and aerospace. Depending on the application requirements, flat flex and ribbon cables can offer a cost-effective solution for connecting components and boards.

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