A transducer can classify the sound generation principle as magnetic, external drive piezo, self-drive piezo, or mechanical. According to the sound generation principle and require AC voltage (Vpp / VAC) as the driver since there is no built-in driver circuit (passive). The transducer is without an oscillation source. Therefore, it provides customers greater design flexibility and small product size. Customers can control the output frequencies, multi-frequency, or voice according to their needs. The minimum size is 3.2mm, and different types of pin, wire, SMT, and solder pad terminals are available for different assembly needs.
A magnetic transducer operated by a magnet and coil, without the built-in oscillation, makes this component smaller and has low current consumption, which is the best sound solution for portable products.
External Drive Piezo Transducer
The external drive piezo transducer is thinner and lighter than the other transducers. Its simple structure makes the minimum thickness only 1.8mm, which benefits the space limitation design.
Self Drive Piezo Transducer
A self-drive piezo transducer widely applies to various alarms, anti-theft, and smoke detection. In addition, its simple structure provides high reliability and low power consumption for the customer’s design.