Before classifying, let ’s learn about the objects of connectors . There are generally five types of connections in electronic systems:   

The first type is the internal connection of the component package, such as the connection between the chip and the metallized substrate, the connection between the chip and the etched or stamped lead frame, and the connection between the metallized substrate and the etched or stamped lead frame ( Including connections between lead frames);   

The second type is the connection of components to printed boards or wires. There are connections between integrated circuit package pins and printed boards, integrated circuit package pins and printed boards and or point-to-point connections, integrated circuit metal Connection of metallized substrate and printed board, integrated circuit metallized substrate and printed board and or point-to-point connection;   

The third type of printed board is connected to wires or printed boards. There are printed boards connected to multi-strand or single-stranded wires, printed boards connected to printed boards, and printed boards connected to round conductors with cables. Connection, printed connection with semi-conductor ribbon cable;   

The fourth type of connection between the low plate and the bottom plate is the connection between the wires, the coaxial wires, shielded wires or twisted pairs are connected to each other, multi-strand and single-core wires, coaxial wires and shielded wires And twisted pairs are connected to each other in any combination;   

The fifth type of equipment is connected with the equipment. There are wires and conductors (single or stranded wires). Coaxial, shielded, and twisted pairs are connected to each other. Axis or shielded wires and twisted pairs are connected to each other in any combination.