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How long can PCBA finished products be stored?

2021-10-27

How long can PCBA finished products be stored?


Dongguan Changsen Electronic Technology Co., Ltd. has been engaged in PCBA development and manufacturing for many years, especially PCBA storage and sharing


PCBA is a board that welds various components on the surface of printed circuit board. With the development of science and technology, the service time of PCBA circuit board and the reliability of high-frequency operation, PCBA pays more and more attention to its shelf life. Under normal circumstances, the preservation time limit of PCBA is 2 ~ 10 years. Dongguan Changsen Electronic Technology Co., Ltd. brings us the influencing factors of the preservation cycle of PCBA finished boards.

Influencing factors of preservation cycle of PCBA finished board

1. 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. It is recommended to store PCBA in a dry, dust-free environment with a constant temperature of 25 ℃.

2. Reliability of components

The reliability of components on different PCBAs also determines the shelf life of PCBA to a great extent. Components with high-quality materials and processes have the ability to resist harsh environment, with a wider range of capabilities and stronger oxidation resistance, which also provides a guarantee for the stability of PCBA.

3. Material and surface treatment technology of printed circuit board

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 prolong the shelf life of PCBA.

4. PCBA board running load

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