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Terminal blocks are devices that are used to make connections between multiple wires. They are commonly used in the electrical and electronics industries for making connections between components, connecting device leads to a board, and connecting peripheral devices to a circuit. Terminal blocks have a wide range of applications, including in the production of automobiles, computers, and consumer electronics.

Wire-to-board terminal blocks, also known as Molex terminals, are a special type of terminal blocks specifically designed to electrically and structurally connect wires to a board. These terminals are most commonly used to connect wires to a printed circuit board (PCB) or IC chips to form a complete electrical circuit. Wire-to-board terminals typically consist of two contact points, one at each end, that are designed to accept a wire and fasten it to the board.

The working principle of wire-to-board terminal blocks is relatively straightforward. The contact points are designed to accept either stranded or solid type wires. When a wire is inserted into the terminal block, it contacts a set of metal plates to complete the electrical connection. The wires are held securely to the board by two common methods: either by a screw or plastic clamp that holds the wire in place, or by a pressure-type socket retainer assembly that provides a strong, vibration-resistant connection.

Wire-to-board terminal blocks provide a convenient and reliable way to connect electrical components to a board. They offer the benefits of creating a physical connection that is easy to assemble yet secure enough to withstand vibration, shock, and ambient temperature changes. In addition, the terminals can provide adequate insulation to protect against electric shock, over-voltage, and short circuits.

Wire-to-board terminals are used in a wide variety of applications, including consumer and industrial electronics, control panels, energy distribution systems, and other electronic and electrical circuits. They can be used to connect LC displays, stepper motors, and other electronic components to PCBs and to power expanders, modems, and other electronic devices.

Wire-to-board terminal blocks provide a good combination of convenience, strength, and reliability. With the wide range of applications available, it is easy to see why they are such a popular choice for connecting wires to a board.

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