How Long Can PCBA Finished Products Be Stored?

Publish Time: January 05,2019

We call PCBA with various components soldered on the surface of the printed circuit board. With the development of science and technology, people are paying more and more attention to the use time of PCBA circuit board and the reliability of high-frequency operation, and PCBA is also More and more attention is paid to its shelf life. Under normal circumstances, the preservation period of PCBA is 2~10 years

Factors Affecting the Storage Cycle of PCBA Finished Boards

1. The environment

The humid and dusty environment is obviously not conducive to the preservation of PCBA. These factors will accelerate the oxidation and fouling of PCBA and shorten the shelf life of PCBA. Generally, it is recommended to store PCBA in a dry, dust-free, and constant temperature environment of 25°C.

2. Reliability of components

The reliability of components on different PCBAs also determines the shelf life of PCBA to a large extent. Components using high-quality materials and processes have the ability to withstand harsh environments, have a wider range of capabilities, and have stronger oxidation resistance. It also provides a guarantee for the stability of PCBA.

3. Material and surface treatment process of printed circuit board

The printed circuit board material itself is not easily affected by the environment, but its surface treatment process is greatly affected by air oxidation. Good surface treatment can extend the shelf life of PCBA.

4. PCBA board operating load

The workload of PCBA is the most important factor in its shelf life. High-frequency and high-load operation will have a continuous high impact on the circuits and components of the circuit board, which are more likely to be oxidized under the influence of heating, resulting in short circuits and open circuits during long-term operation. Therefore, the working parameters of the PCBA board should be in the middle range of the component to avoid approaching the peak value, so as to effectively protect the PCBA and extend its storage life.