Many users in the purchase of buzzer focus on the price, and ignore the electrical performance parameters of the buzzer, easy to cause the buzzer and PCB board drive line does not match, causing a variety of quality problems. The method of matching the buzzer with PCB board circuit is the long service life of buzzer and not easy to break. In addition, in the process of use, we need to pay attention to the following matters:
1. The welding temperature is too high, easy to lead to the deformation of the shell of the buzzer, loose stitching, causing no sound or small sound.
2. The starting voltage of the buzzer is too low or too high, and it is easy to appear the phenomenon of small voice or sand sound in the process of use.
