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FFC (Flat Flexible) Connectors are an increasingly prevalent type of electrical connector. Also referred to as FPC (Flexible Printed Circuit) connectors, they consist of a thin flat cable integrated with pins or wires. Being just 0.2 mm thick and 1.2 mm wide, FFC / FPC connectors provide a high density of connections in a low profile package. This makes them perfectly suited for use in difficult to reach places and in environments that lack sufficient space to accommodate larger connectors. Furthermore, FFC / FPC connectors are also incredibly lightweight.

FFC / FPC connectors are typically used for connecting two printed circuit boards (PCB) or even two cables. While commonly used for electrical connections, the low profile nature of these connectors make them suitable for a variety of applications such as mechanical and data transfer. These connectors are widely utilized in consumer electronics, medical applications, automotive systems, and communications equipment, among many other applications.

FFC / FPC connectors come in both single-sided and double-sided forms. A single-sided FFC / FPC connector has exposed pins on one side, while a double-sided one has exposed pins on both sides. Furthermore, each side of the connector can be equipped with various types of contact pins, such as vertical pins, horizontal pins, and diagonal pins. Typically, the vertical contacts are used for power signals, while the horizontal contacts are used for signals.

The principle behind FFC / FPC connectors revolves around the use of pressure contacts for providing a secure electrical connection. The pressure contacts are made of an elastic material which consists of two main parts. The first part is a base which is fixed onto the board or cable. A cover is then placed on top of the base, locking down the base with pressure. When the cover is closed down, it creates a secure connection between the two parts.

In order to create a reliable electrical connection, the pressure contacts need to be able to sustain a certain level of electrical current. Therefore, it is important to ensure that the contacts are made of materials with high electrical conductivity. Furthermore, these materials also need to possess good thermal conductivity in order for the connections to remain secure over time.

FFC / FPC connectors are incredibly versatile and reliable connectors. Thanks to their small size and low profile design, these connectors can be used in a variety of applications and in places where other connectors cannot reach. Furthermore, due to the pressure contact mechanism utilized, FFC / FPC connectors can provide a reliable connection over time, making them suitable for high power applications.

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