Terminology of terminal block industry

1. Male and female terminals

Some users are used to calling plugs and sockets as common names. Plugs that protrude are male, while sockets are female.

2. Contacts

Also known as contact, its role is to form a connection of electrical continuity, of course, the contact is often the place that leads to poor connection! This is because the contact may become dirty or oxidized, or the elasticity of metal shrapnel becomes smaller with time, which will lead to contact loosening or unreliable connection.

3. Spacing

The terminal spacing is the distance from the center of one contact to the center of the next, such as 3.50mm, 3.81mm, 5.08mm, etc. Because many terminal blocks look very similar to the contact, but the spacing may be different, so the terminals of a model series are often different only because of this parameter, so it is easy to purchase a terminal that cannot be paired without knowing this parameter.

4. Plugging times

At present, the service life of the terminal blocks is limited, and each connection and disconnection of the terminal blocks will lead to partial wear. The service life is expressed by the number of times of plugging and unplugging. The plugging and unplugging times of terminal blocks with different technologies vary greatly.

5. Installation method

At present, the "installation" of terminal refers to the following situations: how to install the terminal in use (installed on the panel, freely suspended, and installed on the circuit board); The angle of the terminal relative to its accessories (right angle or right angle); How to mechanically connect the terminal blocks (solder joint, surface patch joint, through hole joint).

6. Bending resistance extension (for strain relief)

When the connector is installed on the circuit board or cable, the connection at the wire bend is often a little fragile. Some type of anti bending extension is usually provided to relieve the strain, so as to transfer any strain acting on the connector to more reasonable structures.