Many users focus on comparing prices when purchasing buzzers, while ignoring the electrical performance parameters of the buzzer, which can easily cause mismatches between the buzzer and the PCB drive circuit, leading to various quality issues. Matching the buzzer with the PCB circuit is the longest and least likely way for the buzzer to last. In addition, during use, the following precautions should be taken:

1.Excessive welding temperature can easily cause deformation of the buzzer shell, loose pins, and result in no or low sound;

2.The starting voltage of the buzzer is too low or too high, which may result in low or sandy sounds during use;

3. After being stored for a period of time, the buzzer produces a low sound, but after using it for a period of time, it becomes normal. This situation may be due to the influence of a humid environment on the buzzer, and attention should be paid to moisture prevention.
4. When the buzzer works on the PCB board, it may experience pitch changes or no sound, but there is no problem when tested individually. This situation may be caused by magnetic field interference on the buzzer.