14020714402000

Terminal blocks are connectors that support fast and reliable connections for electronic connection points within an electrical assembly.

Terminal blocks are commonly divided into two broad categories, wire-to-board and board-to-board components. Wire-to-board connectors are used for power and signal connections between printed-circuit boards (PCBs) and wires and cables. Board-to-board connectors are used to connect multiple printed-circuit boards together or for attaching cables and wires into a larger connector assembly.

14020714402000 Application Field and Working Principle

Wire-to-board terminal blocks have a wide range of applications, including I/O connectors for factory automation, instrumentation and control, semiconductor production, hot-runner control systems, led lighting, robotics and medical equipment.

The working principle of a wire-to-board terminal block consists of conductive contacts of two different materials. One is the terminal block itself, usually made of copper, brass or aluminium. The other is the contact pin, usually made of gold-plated spring steel. When a wire is inserted into the terminal, the contact pin compresses and holds the wire in place. The contact point or contact surfaces of the contact pin and contact block both must be clean in order to maximize electrical connection performance.

Wire-to-board terminal blocks may be designed in various shapes and sizes to meet different requirements. They are also available in various current ratings and voltage levels. The common types of terminal blocks include screw, spring and quick-connect terminal blocks.

Wire-to-board terminals are designed to provide a secure electrical connection between wires and printed circuit boards. By providing quick and reliable connections they insure the reliability and safety of an electrical assembly while providing for easy installation and modularization.