What is the difference between PCBA and PCB?

PCBA  and PCB  are both commonly used terms in the circuit board manufacturing process. The differences between them are as follows:

1. Conceptual differences:

PCB usually refers to a printed circuit board, which is a board with electronic component pins and electrical lines; PCBA is a printed circuit board that is completed by laying out, welding and other processes of each electronic component based on the design requirements of the PCB. Assemble the board.

2. Differences in manufacturing processes:

PCB manufacturing usually includes finished product production, CNC processing, molding, copper coating, drilling, outer layer finished product production and other processes; while PCBA manufacturing includes: component procurement, patching, through-hole plug-ins, post-soldering processes and other processes.

3. Application differences:

PCB is usually used as the carrier of the core components of various complex electronic products, such as mobile phones, televisions, home theaters, etc.; while PCBA is the finished electronic product, such as computer motherboards, industry control circuit boards, etc.

4. Feature differences:

PCB is a flat circuit board filled with air or other insulators, which can realize circuit connection and mutual signal transmission of electronic components, and has a low cost of use; while PCBA adds welding of components on the basis of PCB The process enables circuit board assembly and practical application.

To sum up, although PCB and PCBA are very similar in name, there are obvious differences between them. PCB, as the core component carrier in electronic products, plays an important role in the electronic design and production process; while PCBA An intermediate stage product in which the finished electronic product is completed by adding components to the PCB and assembling it.