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Flat flex cable or ribbon jumpers are cable assemblies that are used in a variety of applications. These types of cables are often seen in consumer electronic products such as computers, televisions, and audio equipment, as well as industrial products like relays or robotics.

Flat flex cables are typically constructed out of flexible, thin copper strands that are woven together to create a flat, ribbon-like cable. The strands are usually insulated and covered with a protective coating to shield them from environmental elements. The strands are typically arranged in pairs, providing the flexibility and electrical properties that make them ideal for various applications.

The most common application for flat flex cable is connecting a device to a circuit board. This type of cable allows for a more flexible connection while providing excellent electrical and mechanical performance. Flat flex cables are also used to link two piece parts together, such as a display panel to a circuit board or a drive motor to a power source.

When selecting a flat flex cable, it is important to take into account the application environment. In many applications, flat flex cable must be able to maintain its flexibility in temperatures ranging from minus 70° to plus 140° Celsius, and must withstand vibration, shock, and other external stressors. It is also important to consider the current rating, as most flat flex cables have very low resistance, allowing them to carry very high currents while maintaining a low voltage drop.

The working principle of a flat flex cable is relatively simple. The flexible strands of copper that make up the cable are arranged in a ribbon-like shape, allowing them to bend without breaking. As electrical current passes through the cable, it is distributed evenly among all the strands. This results in low voltage drop and a higher level of current carrying capacity. The flexibility of the cables provides a more secure connection while allowing for a much closer contact.

Flat flex cables offer many advantages and are ideal for many applications. They are easy to install, highly flexible, and offer excellent electrical and mechanical performance. This makes them the perfect choice for a wide variety of applications where flexibility, low voltage drop, and a higher current capacity is desired.