1770979 Connectors, Interconnects

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Terminal blocks are electrical connection blocks designed to connect two or more electrical wires and circuits in an organized way. Although similar to screw-terminal strips, terminal blocks are more advanced as they include features such as self-stripping wire connections and improved durability.

Depending on the application, the terminal blocks provide either a wire-to-board or a board-to-board connection. System applications involving terminal blocks provide an easier and more reliable way of connecting wires, while also reducing the cost of reworking the cable harness. The main function of a terminal block is to secure electrical wires so that it can be connected to a PCB.

1770979 Terminal Block - Wire-to-Board

Wire-to-board terminal blocks, also known as PCB terminal blocks, are designed to help make wire-to-board connections much easier and more efficient. They are used to connect wires directly to a PCB and are typically rated for higher electrical current and voltage levels than typical screw-terminal connectors. The most popular type of wire-to-board connection is a molex connector, which can be found on the majority of modern electronic equipment.

1770979 terminal blocks are specifically designed to meet the needs of high-power wire-to-board connections. As their name suggests, they consist of two parts; the terminal block itself, which has a single-piece, “splitter” design, and the mating terminal block, which is made up of two separate parts. The unique design of the two parts allows the terminal block to be connected to a PCB with fewer components than traditional systems, increasing its reliability and durability. Additionally, the splitter design eliminates the need for wire insulation, reducing the risk of electrical short circuit.

The 1770979 terminal block\'s working principle primarily relies on the electrical contact between the two parts; the electrical connection is achieved when the two halves are pressed together so that the terminals of the two parts come in contact. This ensures secure, long-lasting connections that are resistant to vibration and mechanical shock. Additionally, the terminal block can be safely used in high-temperature applications, with a working temperature range between -40°C and 120°C. It also meets the flammability rating V-0 according to UL 94, making it suitable for most industrial and commercial applications.

1770979 terminal blocks provide an efficient and reliable method for connecting wires to a PCB. Its unique design allows for a dependable and secure connection, and it can withstand higher current and voltage levels than standard screw-terminal connectors. Additionally, it is tested and approved for high-temperature applications and is flame-retardant, making it suitable for a wide variety of industrial and commercial applications.

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