What is Card Edge Connector? Who are the domestic and international manufacturers of Card Edge Connectors?

A. What is Card Edge Connector? A Card Edge Connector (CEC) is a common type of electrical connector that is typically used to connect circuit boards (PCBs) to other electronic devices such as expansion cards, modems, routers, network switches, and so on. It is a simple and reliable connector that usually consists of a row of metal contacts that are connected to electrical contacts on the circuit board by snagging on the edge of the board. In this article, we will introduce the principle, design and application of card edge connectors. A card edge connector consists of two parts: a socket and a plug. The socket is a connector that is fixed to the circuit board and consists of a row of jacks, while the plug is a connector that is inserted into the socket and consists of a row of metal contacts. When using a card-edge connector, the connection between the socket and the plug is made by the contact points of the plug making contact with the jacks on the socket. The plug usually consists of a row of spring-loaded contact points that can be bent to fit the shape and size of the jack and ensure tight contact between the plug and the jack. The socket's jack can also be designed to have a flexible shape to ensure good contact with the plug. The connection of the card-edge connector is simple. Insert the plug into the socket so that the contacts on the plug match the jack on the socket. The plug is then pushed down to a position where it can no longer be pushed down. This creates a good electrical connection between the contact points of the plug and the jack of the socket. Because the plug is connected by catching on the edge of the board, card edge connectors are also known as edge card connectors. The design and manufacture of card edge connectors requires consideration of several aspects, including the materials of the socket and plug, the shape and number of contact points, the size and shape of the plug and socket, and the spacing between the plug and socket. Card edge connectors typically consist of two parts: the plug and the socket. The connection between the plug and the receptacle is made by inserting the plug into the receptacle. The plug usually has a row of metal pins, while the socket has a corresponding row of contacts. The contacts of the socket are usually made of a flexible material to ensure that the plug can be easily inserted and removed while still providing an adequate electrical connection. The construction of a card-edge connector is usually related to the size and shape of the circuit board. For example, some card-edge connectors are designed to connect only to boards with a specific width and thickness. In addition, the length and number of pins of a card edge connector may vary depending on the particular application. Some of the features and benefits of card edge connectors include: Compactness: Card edge connectors can be designed to be very compact, making them ideal for use in space-constrained applications. Simplicity: Card edge connectors are very simple in design, making them easy to manufacture, install and maintain. They are often more economical than other connectors. Reliability: Card-edge connectors are generally considered to be very reliable because they provide a robust connection. Once the card edge connector is inserted into the receptacle, the connection is very stable and will not easily come loose. High Speed Transmission: Card edge connectors can support high speed data transmission because the distance between the contacts is very short. This makes them ideal for applications that require high-speed data transmission, such as image and audio processing. Customizable: Card edge connectors can be customized according to the requirements of a specific application. They can be configured with different numbers and arrangements of pins to meet specific board design requirements. Card edge connectors also have some drawbacks, such as: Limited insertion and removal: Card edge connectors have a limited number of insertions and removals compared to other connector types. After many insertions and withdrawals, the contacts may wear out or become deformed, resulting in a degradation of the connection quality. Contact points are susceptible to contamination: Since the contact points are located on the edge of the board, they are susceptible to contamination and corrosion. This can lead to a degradation of the connection quality and requires regular cleaning. The design of card edge connectors can be adapted to different application scenarios. For example, some card-edge connectors have multi-row slots for connecting multiple PCBs. some card-edge connectors also have adjustable snaps to accommodate PCBs of different thicknesses. some card-edge connectors are also designed to prevent electrostatic interference, which improves the stability and reliability of your equipment.

B. What are the domestic and foreign manufacturers of Card Edge Connectors?

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