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Flat Flex, Ribbon Jumper Cables

Connections between small components and between a component and a main board are usually made with flexible cables, known as Flat Flex or Ribbon Jumper Cables.

Flat Flex Jumper Cables, also called flat flex wires or flat cable harnesses, are reliable and cost-effective wiring solutions for high current and high-density interconnections. The cables are flexible and have a positive lock mechanism. This ensures a secure connection without the risk of damaging the connections.

This type of connection has been around for many years, however the 0.5mm ribbon framework, common for use with flat flex cable harnesses, has become increasingly popular due to its low cost, flexibility, ease of routing, and ability to be terminated with commonly available tools. The ribbon framework consists of a normally polyimide jacket that covers a wiring bundle which is usually composed of a combination of wires and terminals.

Flat Flex cables often have a number of interlocking contact points around each side of the cable, which snap together for a secure locking connection. This connection has a keying feature which prevents misalignment during assembly and offers a permanent connection which can be finely tuned to suit each application.

Flat Flex Cables are used in a variety of applications. For example, they can be used as an inexpensive and versatile connection solution for data access and I/O purposes. They are also often used with printed circuit boards for connecting internal devices.

When using Flat Flex Cables, engineers must use proper precautions to ensure that the contact points are making adequate contact. Proper grounding is also key; it is important that the metal components on the end of the cables make contact with the board on both sides of the connection. If any of these connections are not working properly, this could cause electrical problems and even cause the system to malfunction.

The working principle behind Flat Flex Cables is relatively simple. The ribbon-shaped cables are routed through the board and the two ends of the cable are soldered to the two levels of the board, creating a flexible configuration. The cable is assembled with a combination of wires and terminals, which are then snapped into the interlocking contact points. This creates an electrical connection between the two levels of the board, allowing for data transmission.

Flat Flex Cables are designed to make it easier for engineers to connect components to main boards, as well as to connect two components together. This type of connection is ideal for applications requiring high current, high density and low cost. This makes Flat Flex Cable the perfect choice for a range of different applications.

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