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Terminal blocks, also known as ‘Wire-To-Board’ (WTB) solutions, provide an efficient and reliable connection between a great number of wire connections and a single circuit board. Oftentimes, the connecting of wires to a printed circuit board is almost impossible. With the aid of terminal block solutions, manufacturers have the ability to bring the connections they need together in a safer and simpler manner.

Terminal Blocks - Wire to Board

For many applications, terminal blocks are the ideal choice in wire connection solutions. Their comprehensive sets of features makes them ideal for a large variety of applications. Terminal blocks are also designed to make it simpler and more reliable to connect multiple wires to a board. Terminal block features vary from manufacturer to manufacturer, however, some of the most common features are:

• Possible integration with the printed circuit board.
• Easy to use connection system.
• Flexible design.
• Compact and lightweight.
• Wide range of sizes, capacities and materials available.
• Special end fittings.

Terminal blocks are designed to be installed between the printed circuit board and the connector. This makes installation easier and helps reduce the size of the electrical system, while also providing a better connection between the components. This can be beneficial when designing smaller and more complex systems.

Working Principle

Generally speaking, terminal blocks offer two kinds of connection – the wire to board (WTB) and the wire to wire (WTW) connection. The wire to board connection is typically used when connecting multiple wires to a single board. The wire to wire connection is ideal when multiple wires need to be connected together. The WTB connection uses a terminal block with exposed connections which can be soldered onto the printed circuit board.

The WTW connection uses the same type of terminal block, however, the connections are hidden and are usually connected together through a plug and socket mechanism. This type of connection is typically used when connecting multiple wires to each other. The WTW connection is ideal when making complicated wiring connections, such as making a loopback connection.

Wire terminals are designed for either horizontal or vertical entry. The horizontal terminal is the most common type and provides an easy way to connect multiple wires to the board. Vertical entry terminals are equipped with plug-in connections that are designed to fit specific sizes of wires. This type of terminal also allows for a more compact installation of wires as it can be mounted flush against the circuit board.

Terminal blocks are designed for easy installation and serviceability. They generally have removable end fittings for easy access and replacement. Some terminals also feature removable cables or cable glands in order to easily change the cable type or to install cables of different lengths.

Terminal blocks are typically used in a variety of applications, including automotive, telecommunications, industrial and medical. Automotive applications can make use of terminal blocks when connecting electronic systems to the engine control unit. Telecom applications can use terminal blocks to connect the power supply to a variety of devices. Industrial applications can make use of terminal blocks when connecting motor controllers to motors. In the medical field, terminal blocks are often used to make connections with medical equipment.

Conclusion

Terminal blocks, or wire to board solutions, are a popular connection system for a variety of applications. They offer improved reliability, easy installation and a wide range of features for different types of connections. As such, they can be found being used in many different industries.

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