What is the difference between PCB and PCBA?

What is the difference between PCB and PCBA?

I believe many people are not unfamiliar with PCB circuit boards, and they may also frequently listen to them in their daily lives

Arrived, but may not be familiar with PCBA, and may even be confused with PCBs. So what is

PCB? How did PCBA evolve? What is the difference between PCB and PCBA? Now we have come to the specific details

Remove it.


PCB is the abbreviation for Printed Circuit Board, translated into Chinese as Printed Circuit Board

Because it is made using electronic printing technology, it is called a “printed” circuit board. PCB is an important component in the electronics industry

Electronic components are the support body of electronic components and the carrier for electrical connections of electronic components. PCB already

It is widely used in the production and manufacturing of electronic products, and its unique

The characteristics of are summarized as follows:

1. High wiring density, small size, light weight, conducive to miniaturization of electronic devices.

2. Due to the repeatability and consistency of graphics, errors in wiring and assembly are reduced, resulting in savings

Equipment maintenance, debugging, and inspection time.

3. Beneficial for mechanized and automated production, improving labor productivity and reducing the cost of electronic equipment


4. Design can be standardized, facilitating interchangeability.

About PCBA

PCBA is the abbreviation for Printed Circuit Board+Assembly, which means that PCBA is a combination of

The entire process of SMT mounting on an empty PCB board, followed by DIP insertion.

Note: SMT and DIP are both ways of integrating parts on a PCB board, with the main difference being SMT

There is no need to drill holes on the PCB. In DIP, the PIN pin of the part needs to be inserted into the already drilled hole.

SMT (Surface Mounted Technology) surface mounting technology mainly utilizes mounting machines to

Some micro and small parts are mounted on PCB boards, and the production process includes PCB board positioning, printing solder paste

Installation machine installation, reflow soldering furnace, and manufacturing inspection.

DIP stands for “plug-in”, which means inserting parts on the PCB board. These are some parts with larger sizes

And it is not suitable for integrating parts in the form of plugins during mounting technology. Its main production process is: sticking adhesive on the back

Plugins, inspection, peak soldering, plate brushing, and production inspection.

*The difference between PCB and PCBA*

From the above introduction, it can be seen that PCBA generally refers to a processing flow, which can also be understood as

The finished circuit board can only be counted as PCBA after all the processes on the PCB board have been completed. And PCB refers to

It is an empty printed circuit board with no parts on it.


Post time: Jan-24-2024