1036390000

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Terminal blocks, also commonly referred to as headers, plugs and sockets, are components that provide a secure connection between two electronic components. With various features such as high voltage, high current, high temperature and high performance, terminal blocks are used in a wide range of applications that features extreme operating conditions. The key to their successful application lies in their ability to reliably connect circuits without unplanned, hazardous, or unintended consequences.

1036390000 Application Field and Working Principle

Terminal blocks are ideal for connecting signals, control loops, power circuits, and data circuits. They are used in many industries, such as automation, automotive, aerospace, defense, medical and semiconductor fabrication, as well as in robotics and industrial production. They are also used in automotive wiring harnesses, where they provide a high degree of contact integrity and the secure connection of low, medium, and high voltage circuits.

The connection principle of a terminal block is based on insulation displacement contact (IDC). This technology used in terminal blocks makes it possible to create a secure connection without the need to solder or utilize special tools. It is achieved by inserting a bare wire into the IDC connector, which holds the wire securely in place by cutting into the insulation and clamping it onto the wire’s conductor. In this way, an electrical connection is established between the IDC connector and the wire conductor.

Besides IDC contact technology, other contact technologies are also used in the terminal blocks industry. For example, two-finger contact technology is used in two-wire terminal blocks. This technology consists of two fingers that are pressed against the wire’s insulation. As the wire is inserted into the contact area, the two fingers push into the insulation and come into contact with the wire’s conductor, then springs back and firmly holds the wire in place. This ensures a secure connection.

Board-to-board terminal blocks are used when two printed circuit boards (PCBs) need to be connected. This type of terminal block has PCB connectors that are designed specifically for this type of application. The PCB connector is designed with a clamping mechanism or a self-clinching screw to secure the board-to-board connection.

Safety terminal blocks are also available. These are used in applications that require an extra level of safety. For example, in medical imaging equipment, these terminal blocks provide secure connection between the power source and the MRI or CT scanner. The safety terminals are designed to ensure that no dangerous currents can escape and cause injury or damage to the equipment.

Terminal blocks with integrated signal conditioning are also available on the market. These blocks provide the capability to collect and process signals or also provide power for the application. The signal conditioning features allow users to integrate several signal processing functions, such as filters, in a single component.

Terminal blocks can be further tailored to meet customer requirements. They can be customized in terms of color, size, mounting holes, and other features. Additionally, solutions to reduce space requirements and enhance heat dissipation can also be developed.

To conclude, terminal blocks, headers, plugs, and sockets are components used in many industries to provide reliable and secure connection between two electronic components. Depending on the application requirements, different contact technologies, such as insulation displacement contact (IDC) and two-finger contact, are used, and additional features such as signal conditioning and safety terminal blocks can be developed to meet specific customer requirements.

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