0210490712

Series:	Premo-Flex™ 21049
Part Status:	Obsolete
Lead Free Status / RoHS Status:	--
Cable Type:	FFC, FPC
Moisture Sensitivity Level (MSL):	--
Number of Conductors:	4
Pitch:	0.049" (1.25mm)
Length:	7.000" (177.80mm)
Length - Exposed Ends:	0.197" (5.00mm)
Termination Style:	Top on One Side, Bottom on Other, Backers on Both Sides

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Flat Flex, Ribbon Jumper Cables

Introduction

Flat Flexible Cables (FFC) and Ribbon Jumper Cables (RJC) belong to a family of interconnection products that are flattened and can vary in width, length, and pitch. They are frequently used for manufacturer-optimized electrical connections between components and assemblies. Both FFCs and RJC\'s provide an alternative to bulky, hardwired harnesses, which can quickly become expensive and space consuming.

Application Field

FFC and RJC are used for various reasons in a wide range of industries. Often, when tight space constraints or intricate designs are involved, FFC and RJC become the optimal solution for connectors. The highly flexible and space-saving structures allow for customization no matter the required design. Common areas of application include computers, telecommunications, consumer electronics, audio/visual equipment, medical diagnostic equipment, automotive components, security systems, and even aerospace components.

Working Principle

The FFC and RJC technology consists of a flat metallic conductor that is surrounded by an insulation material such as PVC, PTFE, FEP, or polyethylene. The strands are cut to the required length and pre-formed with a "D" contact geometry at one end for even force distribution along the length of the conductor. This guarantees repeatable and reliable electrical connections when inserting into the mating connector. The FFC and RJC feature two basic connection methods: crimping and IDC technology. Crimp technology uses a die press to deform the fibres on the conductor in order to ensure contact between the mating connector and the conductor. IDC technology uses an insulation-displacement contact principle stimulating the conductor’s fibres such that electrical contact is achieved.

Conclusion

FFC and RJC offer a variety of advantages compared to traditional hard-wired cables and harnesses. Their flattened structure allows for space savings when designing complex assemblies and is especially beneficial in highly constrained environments. Furthermore, the ease of customization of these components provides a great deal of flexibility for manufacturers, allowing them to optimize their products to any given design. FFC and RJC are reliable solutions for connecting components and assemblies due to their two connection methods, depending on the requirement and application.

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