These buzzers are widely use in computers, printers, copiers, alarms, electronic toys, automotive electronic equipment, telephones, timers and other electronic products for sound devices. It is made up of oscillator, the electromagnetic coils, magnets, diaphragm and housing and other components. Applying power, the audio signal generated by the oscillator current through the solenoid coil, the electromagnetic coil generates a magnetic field which activates the diaphragm.
Voltage: 3V – 6volts
Current: less than 35mA