0210200921

Series:	Premo-Flex™ 21020
Part Status:	Obsolete
Lead Free Status / RoHS Status:	--
Cable Type:	FFC, FPC
Moisture Sensitivity Level (MSL):	--
Number of Conductors:	23
Pitch:	0.020" (0.50mm)
Length:	1.180" (29.97mm)
Length - Exposed Ends:	0.157" (4.00mm)
Termination Style:	Top on Both Sides, Backers on Both Sides

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Flat Flex, Ribbon Jumper Cables – Application Field and Working Principle

Flat flex and ribbon jumper cables are flat conductive pieces of flexible plastic with metal or other material attached to them to form connections between electrical components, such as integrated circuits or larger electronic boards. Flat flex cables (FFC\'s) use flexible metal connectors and a flat "ribbon" of plastic with metal embedded within, while ribbon jumper cables (RJC\'s) use either printed circuits or foil-wrapped conductor wires.Flat flex and ribbon jumper cables are descended from ribbon cable, which first appeared in 1966, and become popular due to their increased flexibility and savings in terms of space and cost. In modern electronic equipment, both FFCs and RJCs are an indispensable part of the signal routing solution. They allow complex electronics to be connected together in a much smaller space than was previously possible.

Application Field

Flat flex and ribbon jumper cables are used in almost any electronics application, but they are especially popular in areas where space is at a premium. A good example of the uses of flat flex and ribbon jumper cables is cellular phone technology, where the space restrictions imposed by the form factor of the device necessitate the use of miniaturized components. FFCs are also often used in memory cards and other smaller form factor gadgets where space is an issue, as connectors must be small enough to fit within a certain space.In other electronic applications, FFCs and RJC\'s are used to connect boards and components in a larger system. They are often used in the development stages of a product, as they are easier and cheaper to design with than multiple discrete cables. FFCs and RJC\'s are also much shorter than other cables, so they require fewer components and less labor to assemble, reducing costs in the production stage as well.

Working Principle

Flat flex and ribbon jumper cables use a series of brass terminals with insulation plugs or receptacles to form the electrical connection between two components. When the connection is made, the terminals are pressed into a corresponding terminal plug or receptacle by a mechanical force, such as a lever. This pressure allows the metal contacts to form an electrical and mechanical bond, resulting in a secure connection.The connection between the flat flex or ribbon jumper cables and their corresponding port or terminal is essential, as a bad connection can cause faulty operation or even a complete failure of the circuit. To ensure a secure connection, it is essential that the mounting pressure of the terminal is correctly set and that the terminal is well-seated in the port or terminal plug. Additionally, care must be taken to ensure that any dust or debris is removed from the mating surfaces before making a connection to prevent any electrical interference.Flat flex and ribbon jumper cables are a reliable, cost-effective solution for almost any electronic application where space or cost is a concern. Their versatility, and their ability to be tailored to specific needs makes them an ideal choice for many modern devices.

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