How long can PCBA products be stored?
How long can PCBA products be stored?
PCBA refers to the circuit board with various components soldered on the surface. People often pay attention to its reliability of long-term and high-frequency operation, and sometimes need to know its shelf life. In general, the shelf life of PCBA-processed products is 2 to 10 years, which is mainly affected by the following factors:
1. The environment
The humid and dusty environment is obviously not conducive to the preservation of PCBA. These factors will accelerate the oxidation and contamination of PCBA and shorten the shelf life of PCBA. In general, it is recommended that PCBA be stored in a dry, dust-free space at a constant temperature of 25 degrees Celsius.
2. Reliability of components
The reliability of components on different PCBAs also determines the shelf life of PCBA to a large extent. Components with high-quality materials and processes have the ability to resist harsh environments, with a wider range of capabilities and stronger oxidation resistance. Stability is guaranteed.
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3. The material and surface treatment process of the circuit board
The material of the circuit board itself is not easily affected by the environment, but its surface treatment process is greatly affected by air oxidation. Surface treatment with good craftsmanship can prolong the shelf life of PCBA.
4. PCBA board running load
PCBA operating load is the most important factor for its shelf life. High-frequency and high-load operation itself will have a continuous high impact on the circuit and components of the circuit board. It is easier to oxidize under the influence of heat, resulting in long-term operation. Short circuit, open circuit phenomenon occurs. Therefore, the operating parameters of the PCBA board should preferably be in the middle value range of the components and avoid being near the peak value, which can effectively protect the PCBA and prolong its shelf life.
The shelf life of PCBA-processed products is a comprehensive task, which needs to follow scientific design specifications, manufacturing process specifications, and operation specifications, so as to extend their shelf life to the greatest extent.