Flat Flex, Ribbon Jumper Cables: FJ-20-R-31.50-4 Application Field and Working Principle

Introduction

Flat Flex, Ribbon Jumper Cables (FJ) are specially designed for use as a flexible interconnecting system for printed circuit boards (PCB). FJ cables come in a wide range of sizes and shapes, from small for single board systems to large configurations for entire assemblies. The FJ-20-R-31.50-4 is the most popular size used for standard PCB applications.

Application Field:

FJ-20-R-31.50-4 cables are primarily used to make mechanical and electrical connections between high-density PCBs. These cables have high flexibility as well as robust construction, making them suitable for many industrial and commercial applications such as automotive, medical and military. They are ideal for use in applications where space is limited and where multiple connections are needed. The FJ-20-R-31.50-4 cables provide reliable connections without running a large bundle of wires, thus making them very cost-effective.

Working Principle:

The working principle of FJ-20-R-31.50-4 cables is based on the flat-flex technology. This technology works by using a flat conductor, which is coated on both sides with a flexible material. This flexible material is often PVC, but can also be other thermoplastics such as PTFE or FEP. The conductive surface of the cable is then connected to a matching contact (header). This connection is made either through soldering the conductive traces on the header to the conductive traces on the cable or through a crimped connection. The flexible material protects the conductive traces from damage and ensures a tight connection between the header and cable.

After the connection is made, the FJ-20-R-31.50-4 cable is then secured to the header. This is usually done by using a clamping device. The clamping device prevents any tugging or pulling from damaging the connection. The clamped cable is then routed along the printed circuit board ensuring good connectivity. This marks the end of the installation process.

Advantages

FJ-20-R-31.50-4 cables offer several advantages over traditional ribbon cables. These advantages include:

• The flat-flex technology used in the FJ-20-R-31.50-4 cables allows for more connections to be made in a smaller space, making them ideal for applications where space is limited.
• The flexible material used in the cable protects against any electrical interference from coming in contact with the connections made between the header and cable, providing reliable signal transmission.
• The FJ-20-R-31.50-4 cables are lower in profile when compared to traditional ribbon cables, making them easier to route and manage.
• The FJ-20-R-31.50-4 cables are also more cost-effective when compared to traditional ribbon cables, as they require fewer conductors to make multiple connections.

Conclusion

The FJ-20-R-31.50-4 cable is a reliable and cost-effective alternative to traditional ribbon cables. Its flexibility and robust construction make it suitable for use in a wide range of applications. The connection made between the header and cable using the flat-flex technology is secure and reliable, meaning that the FJ-20-R-31.50-4 cable is great for ensuring reliable and efficient connection between two PCBs.