9055 Buzzer
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Electromagnetic buzzer is a type of buzzer, different from piezoelectric buzzer. Electromagnetic buzzer is an electronic sounder that uses the action of an electromagnetic coil on the buzzer to produce sound, and is used as a sounding device for electronic products.
1. Passive
After excitation, the sealed resonant cavity buzzer is the opposite, suitable for high current consumption specifications/high frequency range response sound, and has good sound quality (around 40-80mA * 500Hz).
2. Active
The active (self excited) buzzer vibration coil and vibration coil are combined into one.
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Buzzer
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