# Introduction to Crimp Terminals
Crimp terminals are secured by screws with clamping notches to the terminal posts of electrical components or terminal blocks. As accessory products for establishing electrical connections, crimp terminals are classified as connectors in the industry.
With the rising level of industrial automation and increasingly stringent and precise industrial control requirements, the demand for terminal blocks is continuously growing. The rapid development of the electronics industry has expanded the application scope and enriched the varieties of terminal blocks.
Terminal blocks can be categorized into WUK terminal blocks, European-style terminal block series, pluggable terminal block series, transformer terminal blocks, building wiring terminals, barrier terminal block series, spring terminal block series, DIN rail-mounted terminal block series, feed-through terminal block series, optocoupler terminal block series, 110 terminals, 205 terminals, 250 terminals, 187 terminals, OD2.2 ring terminals, 2.5 ring terminals, 3.2 ring terminals, 4.2 ring terminals, 6.4 ring terminals, 8.4 ring terminals, 11 ring terminals, 13 ring terminals, flag-type terminal series and housing series, various ring terminals, tubular terminals, as well as copper and iron strips (2-03, 4-03, 4-04, 6-03, 6-04), etc.
At present, PCB terminals, hardware terminals, nut terminals and spring terminals are the most widely used types. Given the extensive applications of terminal blocks, the editor from the cable industry community has sorted out relevant knowledge about terminal blocks for your collection and reference.
1.1 Terminals for 3C Products
(1) Information Products
A. Personal Desktop PCs: Internal power supplies and uninterruptible power supplies (UPS).
B. Industrial Computers: Internal motherboards and electromechanical control boards.
C. Peripheral Equipment: Such as scanners, printers and copiers.
(2) Communication Products
A. Wired transmission and terminal control systems and equipment: For example, power supplies for electronic exchanges and telephone line connectors.
B. Wireless transmission and terminal control systems and equipment: Such as base station transmission equipment and power supplies for switches.
(3) Consumer Electronic Products: Mainly supplied to various global video, audio and home appliance products.
A. Video products include televisions, video recorders and camcorder peripheral accessories.
B. Audio products include home audio systems, portable audio players and car audio systems.
Also including clothes dryers, microwave ovens, ovens, electric fans, electric heaters, dishwashers, sports equipment and bathroom control systems.
The future trend of consumer electronic products will integrate audio-visual, communication and information technologies, known as 3C integration.
1.2 Terminals for Electronic Products
(1) Power transmission systems and voltage transformation systems in power distribution systems: Applied in power plants, transmission equipment, relay stations, as well as factories, residential buildings, public buildings and industrial equipment, etc.
(2) Control systems: Mechanical equipment in various industries, elevators, automated equipment, etc.
1.3 Terminals for Transportation Vehicles
(1) Widely used for power supply and dashboard signal transmission in aircraft, ships, various vehicles and electric vehicles.
(2) Electromechanical systems of high-speed railways and mass rapid transit systems