PCBA refers to a circuit board with various components soldered on the surface. People often pay attention to the reliability of its long-term, high-frequency operation, and occasionally need to understand its shelf life. Generally, the shelf life of PCBA processed products is 2~10 years, which is mainly affected by the following factors:

1. The environment

A humid and dusty environment is obviously not conducive to the preservation of PCBA. These factors will accelerate the oxidation and dirt of PCBA and shorten the shelf life of PCBA. In general, it is recommended to store PCBA in a dry, dust-free space with a constant temperature of 25 degrees Celsius.

2. Reliability of components

The reliability of components on different PCBAs also largely determines the shelf life of PCBA. Components with high-quality materials and processes have the ability to withstand harsh environments, with a wider range of capabilities and stronger oxidation resistance, which is also PCBA Stability is guaranteed.

3. The material and surface treatment process of the circuit board

The material of the circuit board itself is extremely unlikely to be 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

PCBA operating load is the most important factor in its shelf life. The operation of high frequency and high load will cause continuous and high impact on the circuit and components of the circuit board. It is more likely to be oxidized when affected by heat, which will cause damage during long-term operation. Short circuit or 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 near the peak value. This can effectively protect the PCBA and extend its shelf life.

The shelf life of PCBA processed products is a comprehensive work, which needs to follow scientific design specifications, manufacturing process specifications and operation specifications, so that the shelf life can be extended to the greatest extent.