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Introduction to FFC and FPC Connectors

Flat Flexible Connectors (FFC) and Flat Printed Circuit (FPC) Connectors have been widely used as increasing trends in the electronics industry. The flatness of FFC and FPC connectors provides space saving benefits as well as increased reliability. FFC and FPC connector technology has been available for over 30 years. They are used for a variety of applications from simple cable harnesses to high speed data interconnects. This article provides an overview of FFC and FPC connectors including their application field and working principle.

What are FFC and FPC Connectors?

FFC and FPC connectors are small, size-efficient connectors used for connecting flat cables to electronic components. They are ideal for board to board, board to cable, and other precision electronic interconnect applications. These connectors are designed to be space-saving and reliable by combining flexible, durable cables that can be bent or folded, with housing that clips onto the component board with a simple latch.

Types of FFC and FPC Connectors

FFC and FPC connectors come in various types depending on the application and the type of cable used. Common types include single-ended and double-ended connectors. Single-ended connectors are easier to assemble as they only need one side to be clipped into place. Double-ended connectors require a second connector on the other end of the cable and are often used when various cables need to be connected together. The most popular sizes are 0.5mm pitch and 1.0mm pitch and they come in sizes ranging from 2-40 pins.

FFC and FPC Connector Application Fields

FFC and FPC connectors are used in a variety of applications such as computers, consumer electronics, medical devices, telecommunications, and automotive. Commonly used in consumer electronics such as digital cameras and MP3 players, FFC and FPC connectors are also found in other electronics such as aircraft control products, computers, medical equipment, power and automotive components. They are also used in connection panels, splitters, routers, modems, motherboards, and other wired equipment.

FFC and FPC Connector Working Principles

FFC and FPC connectors are manufactured with a variety of materials, including copper, aluminum, polyester, and polyimide. The contacts inside the connector consist of two parts, the housing and the terminal. The housing serves as the structural support and protection for the contacts. The terminal is the electrical connection point and is usually made of brass or bronze.

FFC and FPC connectors are usually assembled with an automated crimping process. This process uses a tool to crimp the pins onto the cable and fastens them into the housing. This ensures a secure and reliable connection between the cable and connector. The most common installation method is to press fit the connector onto the PCB, which is achieved by placing the connector and cable into the PCB and applying pressure until the connectors click into place.

Conclusion

FFC and FPC connectors provide a reliable and space-saving solution for various electronic interconnect applications. Offering a number of advantages including flexibility, increased durability, easy assembly, and a wide variety of sizes, FFC and FPC connectors are widely used in consumer electronics, computers, medical equipment, and other wired electronic components. Understanding their application field and working principle can help you make the right decision when selecting a connector for your application.

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