1892530000

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Terminal Blocks - Headers, Plugs and Sockets file 1892530000 applications and working principle. Terminal blocks are components consisting of two or more terminals, each designed to be terminated with a cable, and a link-zone that allows several components to be bolted together for the same electrical circuit. Connectors are also considered terminal blocks since they perform the same purpose. However, they are composed of several components such as a cover, an outer body, a terminal, and a tongue terminal.

These components, unlike their cousins, have no limitation regarding the electrical rating, so they are used to connect wires through a wide range of voltages up to 600V. These blocks can either be mounted on a printed circuit board (PCB) for applications in power supplies, inverters, and other systems, or placed directly in electrical/electronic circuits as an alternative to wiring.

In order to classify the different types of terminal blocks, it is necessary to refer to the purpose they are intended for. Essentially, they are divided into three main types: headers, plugs, and sockets.

Header terminal blocks

Header terminal blocks are also known as line terminals and provide the easiest connection interface between the points of the circuit. These components consist of two sections, the main body containing the terminals, and the lugs required for the interconnection. Available with different pitch designs, header terminal blocks are used to connect power leads, control lines, and signals from the PCB to the terminal strip.

Plug terminal blocks

As the name suggests, plug terminal blocks are used to connect electrical circuits through the insertion and removal of plugs. They consist of two parts; the main body and the plug, also known as an insertion contact. The plug is often designed using a standardized format and the connection between the plug and the body is made by means of a pin-and-socket mechanism.

Socket terminal blocks

Socket terminal blocks, sometimes referred to as receptacle terminal blocks, are similar to plug terminal blocks, but in this case, they consist of two separate parts, the main body and the socket. The socket, also known as the female connector, provides the necessary mating surface for the male plug. These components are used for high-density applications requiring a secure and reliable connection. It uses a spring-action mechanism to make a connection.

Terminal blocks offer several advantages as connectors for electronic circuits. Firstly, they replace the bulky and traditional wire-wrapping, soldering, and mechanical wiring methods commonly used to interconnect circuits in power supplies, inverters, PCBs, LED lighting systems, and many other electrical/electronic applications. Secondly, they provide efficient and secure connections, with the pins securely retained within the socket contact that prevent accidental disconnections.

In conclusion, terminal blocks offer an efficient way to connect various electronic components and circuits. They offer a wide variety of configurations, such as header, plug, and socket terminal blocks, to suit the requirements of different applications. They also provide secure connections, increasing the reliability of the electronics used in the circuits.

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