Piezoelectric buzzer: The piezoelectric buzzer uses the piezoelectric ceramics buzzer piece to produce the positive and negative motion direction under the external electric field change, thus produces the distortion to produce the sound. When the buzzer is installed in the external resonance box, the sound can be increased.
The advantages of the piezoelectric buzzer are: low power consumption, low current, wireless coil contact, so long life and no noise, thin thickness, wide frequency range, no magnetic field.
The market is now turning to energy saving, high loudness and low current direction. All kinds of piezoelectric buzzer will be applied in more fields.
Main piezoelectric parameters?? sound type (Continuous, Pulse, Siren)
Sound pressure (dB)
Frequency (Hz)
Current (mA)
Electrostatic capacity (uF)
Operating voltage (V)
Operating temperature (c)
Storage temperature (c)
Outline size (mm)
Weight (g)
Connection mode (PIN, WIRE)
Environmental protection requirements (RoHS)