We have actually learned a lot about electromagnetic buzzer related information, so some differences between it and piezoelectric buzzer are also simple analysis, then in fact electromagnetic buzzer and piezoelectric buzzer There is more than one product, so let’s briefly analyze the series of electromagnetic buzzers.

　　Electromagnetic buzzer can be divided into the following series of products:

　　1, split type adopts soft encapsulation to start
　　 This type of electromagnetic buzzer mainly has the following characteristics: its price is relatively low; the performance of the buzzer is unstable and will be affected by the environment more obviously; the anti-interference ability is poor, and the application range is relatively layout

　　2, split type adopts hard encapsulation to start
　　The price of this type of electromagnetic buzzer is moderate, but its stability is better than the first type, so the application market is wider than the first type.

　　3, the integrated type adopts hard encapsulated single tube to start
　　This kind of buzzer is higher than the first two types. It not only has the characteristics of the first two electromagnetic buzzers but also makes up for their shortcomings.

　　4, the integrated type adopts hard encapsulated double tube to start
The price of this electromagnetic buzzer is higher than the first three types. It is a mid-to-high-end type buzzer. Of course, the various performances of this electromagnetic buzzer are also very good, including stability. Well, the application range is the widest.

　　The electromagnetic buzzer will have many problems in normal use, as follows:
　　 1. Some buzzers have no sound right after they are bought, which means that there is a problem with the quality of their own products. This will be more reflected in the first buzzer.
　　2. After installing the buzzer to the corresponding electronic device terminal, there will be no sound. This may be due to wear and tear during the installation process, which may cause the pins of the buzzer to fall.
　　 3. After installation, the account opening buzzer, but the sound is very small, then you have to consider whether it is abnormal due to the current problem of the electromagnetic buzzer.
　　4. The buzzer has changed or no sound after using it for a period of time. In this case, the continuous buzzing time of the buzzer is too long or the buzzer is affected by the environment.
　　5. After the buzzer is welded, there is a tone change or no sound when working on the wire board, but it is no problem to test it with a DC stabilized power supply when it is removed. In this case, the buzzer may be interfered.