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Terminal Blocks - Headers, Plugs and Sockets

Terminal blocks can be divided into three categories: headers, plugs and sockets. They form an integral part of most electrical systems and are used for providing connections between components within the system.

Headers

Headers are used to maintain electrical connections between components on a circuit board. They provide the means to securely attach circuit components such as resistors and transistors and attach them to the circuit board.

Headers are constructed of metal parts, plastic parts and contact pins. Headers are typically mounted on a circuit board using soldering process and provide a secure connection between two or more components. Headers also provide a ground point for connecting the components to ground however they require jumpers to be utilized in order to allow the current to pass from one component to another.

Plugs

Plugs are used to securely connect cables carrying power from one component to another. Plugs are typically inserted in one end of a cable and connected to an outlet or power strip on the other end. Plugs are also used to connect electrical equipment to power outlets or data ports in order to provide power or communication signals to the equipment.

Plugs are made with a male and female connector with current and voltage ratings varying depending on the type of plug and application. The connectors are typically gold or tinned material that provides a secure connection between the two components. Plugs are also designed with safety features such as ground eyeglasses to reduce shock hazards.

Sockets

Sockets are used to provide power from one component to another. They are connected to a power source and provide an electrical outlet for components such as fans, engines and heating elements. Sockets are usually constructed with a base that can be mounted to a surface, with a receptacle that contacts the components to be powered.

Sockets typically come in various shapes and sizes and are designed with different current and voltage ratings. The contacts are made of solid metal and provide a secure connection between the power source and the component. Sockets are also designed with safety features such as overload protection and thermal protection.

Application Field and Working Principle

Terminal blocks are used in a variety of applications in the electrical and electronic industries, including power distribution, motor control, and communications systems. In these applications they provide secure and reliable connections for power and signal transmission.

Terminal blocks are designed to offer a secure physical connection point between circuit boards and components. A variety of connection types are available, including screw terminals, spring terminals, dip terminals and push-in terminals. Each type is designed for a specific application, depending on the current and voltage ratings as well as the type of connection.

The working principle of terminal blocks can be described as follows. Electrical current passes through the contact pins, which are connected to the headers. The current then passes through the cables, connectors and other components until it reaches its destination. The terminal block provides a secure connection point between each component, ensuring a secure and reliable connection.

In summary, terminal blocks, headers, plugs and sockets are essential components in most electrical and electronic systems. They provide a secure and reliable connection between circuit boards and components and form an integral part of most electrical systems. Each type of block is designed for a specific application and offers a variety of connections, depending on the application in question.

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