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Function and material selection strategy of terminal connectors

2025-06-12

01. Terminal Connector functions and characteristics
Function and Application
Terminal connectors are critical electronic components used to connect wires or Cables, providing stability in electrical connections, securing wires, and ensuring normal current flow in electronic devices and appliances. Plays an important role in multiple fields such as electronic devices, household appliances, and automotive electronics. They not only ensure the stability of electrical connections, but also provide effective fixation for wires. These connectors are usually composed of two or more metal terminals, which are conveniently connected to wires or cables through crimping threads or welding.
Connection and fixing methods
Terminal connectors insert wires through holes in metal sheets and use screws and other fasteners to establish or disconnect connections, providing a flexible and reliable connection solution. Terminal connectors, a critical electronic component that connects wires or cables, are typically composed of metal sheets tightly wrapped in insulating plastic. Both ends are equipped with holes for easy insertion of wires. By using screws or other fasteners, it is easy to tighten or loosen wires, thereby establishing or disconnecting connections. This flexible connection method enables two wires to be quickly connected when needed and easily disconnected when not needed, without the need for welding or cumbersome winding steps, providing great convenience for the connection of electronic devices.
02. Considerations for Material Selection
mechanical properties
When selecting terminal materials, we need to focus on mechanical properties, including material strength, ductility, yield strength, and hardness, which directly affect the physical properties of the terminal.
Conductivity and thermal conductivity
Conductivity affects the conductivity and self resistance of terminals, and high conductivity means low resistance. The thermal conductivity affects the heat dissipation effect of the terminal. Conductivity is positively correlated with thermal conductivity, and conductivity not only relates to the conductivity of a terminal, but also determines its own resistance; Meanwhile, thermal conductivity affects the heat dissipation effect of the terminal.
Stress relaxation resistance ability
In addition, if the connection part of the terminal is achieved through plug-in deformation, special consideration should be given to the effects of stress relaxation and fatigue on the connection performance. The anti stress relaxation ability of materials prevents the terminal from losing its firmness in connection with the wire, especially during crimping and insertion deformation operations, which has a significant impact on the stability of the connection.