Series:	Premo-Flex™ 21039
Part Status:	Obsolete
Lead Free Status / RoHS Status:	--
Cable Type:	FFC, FPC
Moisture Sensitivity Level (MSL):	--
Number of Conductors:	4
Pitch:	0.039" (1.00mm)
Length:	7.000" (177.80mm)
Length - Exposed Ends:	0.157" (4.00mm)
Termination Style:	Top on One Side, Bottom on Other, Backers on Both Sides

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Flat Flex, Ribbon Jumper Cables

0210390712 application field and working principle

Introduction

Flat Flex (FFC) and Ribbon Jumper Cables (RJC) are two types of cables with similar characteristics, but with different applications. FFCs are used in high-speed data transmission, while RJC are used in low-speed data transmission. Both cables are made using multiple flexible flat conductors and a flexible insulating layer made from polyimide, polyester or polytetrafluoroethylene (PTFE). The conductors are typically copper-clad steel (CCS), but can also be made from other metals, such as silver or copper.

Applications

FFCs are widely used in data applications, such as internal data busses, computer network cables, and USB cables. RJC are commonly used in low-speed data applications, such as wire harnesses for cars and appliances, and connection cables for embedded systems. Both types of cables are often used in combination, with FFCs being used for high-speed data transmission and RJC for low-speed data transmission.

Working Principle

FFCs and RJC cables work by utilizing the flexing of the individual wires that make up the cables. As the individual conductors flex, they create a flat waveform that is propagated along the cable. This waveform is used for signal transmission. For FFCs, the signals are typically transmitted at high frequencies, allowing for high-speed transmission of data. For RJC, the signals are transmitted at lower frequencies, so that the signals propagate more slowly along the cable, but with less data loss.

Types of FFCs and RJC

FFCs and RJC cables come in two varieties: shielded and unshielded. Unshielded cables are made up of a single layer of insulated wires, while shielded cables use a combination of multiple layers of conductors and insulators to reduce signal interference. The shielded cables are typically used in data-sensitive applications, while unshielded cables are used in less data-sensitive applications.

Advantages of FFCs and RJC

FFCs and RJC cables have many advantages over conventional cables. They are smaller than conventional cables, making them easier to install and route through tight spaces. They also have very low signal interference and are highly resistant to vibration and electromagnetic interference. Finally, they are highly reliable and efficient at transmitting data over long distances.

Conclusion

FFCs and RJC cables are two types of cables used for data transmission. FFCs are used in high-speed applications, while RJC are used in low-speed applications. Both types of cables have their advantages, such as being small, reliable, and resistant to signal interference.

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