What Problems Will Occur When PCB Boards are Placed in Humid Environment?

PCB circuit boards are prone to various problems in a humid environment, such as short circuits and circuit board signal open circuits. So how to tell if the PCB circuit board is wet?

If the PCB circuit board is used in a humid environment, and the air in this environment contains a lot of moisture. When the humidity is too high, water drops will form and drop on the PCB circuit board. After the water drops on the PCB circuit board are dispersed on the circuit board, they will be adsorbed on each pin of the electronic component or the printed line.

When the printed line is wet from water drops, especially the signal transmission line is relatively small, after a long time of soaking, the printed line will be moldy and broken, which will cause the circuit board to fail to operate normally when it is put into work again. Case.

The reasons for circuit board failure caused by humidity are as follows:

1. The PCB circuit board fails due to changes in the circuit parameters of the PCB circuit board.

2. The PCB circuit board fails due to a short circuit in the circuit of the PCB circuit board.

3. The PCB circuit board fails due to the signal processing or transmission line break in the PCB circuit board.