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Flat Flexible (FFC/FPC) connectors are a type of electrical connector, commonly used as a simple interconnect between a PCB and a variety of independently mounted components. These electrical connectors come in many different shapes and sizes depending on the application, and are typically used in applications where the need to protect PCB traces, facilitate blind mating connections, minimize assembly labor, and provide reliable electrical connections are paramount.

Given that there is such a wide range of available FFC/FPC connectors, it is necessary to understand their specific application fields and working principles. Specifically, the most common application fields of FFC/FPC connectors are panel-mounted devices, LCDs, LEDs, memory cards, and cellular phone components. These connectors provide benefits such as ease of use, a smaller form factor, and ease of board-to-board assembly, compared to many other types of connectors.

A common design for FFC/FPC connectors includes two flexible flat cables attached to one another at one end, and the other end of the cables each terminating with a metal spring contact. The contacts are placed on the flexible flat cables using visible protrusions, commonly referred to as polarizer tabs. Common polarizer tab designs come in multiple varieties, including straight, continuous, curved, and diagonal polarizers. The two flexible flat cables are held in place by a clip, typically referred to as a "cable retention clip", most commonly machined from plastic.

The working principle of FFC/FPC connectors is fairly simple. They are designed to provide both power and ground connections from the PCB to a mounted device. The contacts on the cables provide electrical pathways between mating systems, with the clips providing retention of the flexible flat cables to the PCB board. The polarizers and retention clip also serve the purpose of preventing damage to the PCB boards during assembly, and allowing for easy and secure connections between the PCB and mounted system.

FFC/FPC connectors are commonly used in many different applications, as they provide an efficient, reliable, and inexpensive electrical connection. They also offer the benefits of being easy to install, requiring minimal additional hardware, and saving space, which makes them an ideal choice for many industrial and consumer electronics applications. As a result, these types of connectors are commonly seen in many consumer electronics products, from cell phones, computers, game consoles, and robotic systems, as well as in industrial applications, such as medical systems, factory automation, and automotive electronics.

Overall, FFC/FPC connectors are a versatile and reliable choice for electrical connection needs. With the increasing availability of different shapes and sizes of FFC/FPC connectors, it is easy to find the right connector for the job. With its low cost and easy installation, FFC/FPC connectors are a great option for any application.

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