1. Classified by purpose and structure

1) Plug in terminal

• Features: Easy to plug and unplug, good contact.
• Types: TAB terminal, FASTON terminal, AMP terminal, etc.
  

• Purpose: Widely used in automotive circuit connectors, facilitating the connection and disconnection of circuits, and facilitating maintenance and replacement.
  

2) Crimp type terminals

• Features: Mainly used for one-time connections or occasions with low terminal strength requirements, with fast connection speed and simple equipment.
  
• Disadvantages: Low strength, small contact area, and easy to burn out.
  

• Purpose: Suitable for situations where connection strength is not high, such as connecting auxiliary circuits.

3) Welded terminals

• Features: The connection is firm and not easy to loosen.
  

• Types: DIP terminals, SMT terminals, etc.

• Purpose: Mainly used for connecting wire harnesses and PCB circuit boards to ensure the stability and reliability of circuits.
  

2. Classified by Function

1) Power terminal block

• Purpose: Mainly used to connect the electrical systems of vehicles, such as the power lines inside the engine compartment.
  

2) Signal terminal block

         Purpose: Used for transmitting various signals, such as audio signals, video signals, sensor signals, etc.

3) Coaxial terminal block

        Purpose: Mainly used to connect car radios, antennas, and other devices, transmitting audio and video signals.

4) USB terminal block

        Purpose: Used to connect USB interfaces inside cars, achieve charging and data transfer functions.

5) Audio terminal block

        Purpose: Used to connect audio devices in cars, such as radios, CD players, MP3 players, etc.

6) Antenna terminal block

        Purpose: Used to connect the wireless antenna of vehicles, ensuring the normal operation of radios and other wireless communication devices.

7) Light bulb terminal block

       Purpose: Used to connect vehicle lights, clearance lights, brake lights, etc., ensuring driving safety.

8) Sensor terminal block

       Purpose: Used to connect various sensors in cars, such as air flow meters, ABS sensors, etc., providing key data for the engine and brake system.

3.    Other classification methods

In addition to the above classification methods, automotive terminal blocks can also be classified according to wiring methods (such as crimping, welding, etc.), shapes (such as direct insertion, surface mount, etc.), sizes (such as high current terminals, low current terminals, etc.)…

4.  Summary

As an important component in the automotive electrical system, automotive terminal blocks have various types and uses. Different types of terminal blocks play different roles in electrical connections, jointly ensuring the stability and reliability of automotive electrical systems. When selecting and using automotive terminal blocks, the selection should be based on specific application scenarios and requirements to ensure the quality and stability of electrical connections.