A low cost 9V Miniature Buzzer with built in drive circuitry and leads. Current 25 mA. Dimensions L 23, W 17, D 15mm. Output 75db @ 30cm. Frequency 400Hz.
· Buzzer is also called beeper.
· It is an audio singling device.
· Buzzer is of different types, like electrical, mechanical and piezoelectric.
· It is having application in many fields like alarm device, doorbells, mouse.
· It is of low cost and easily available.
· It is low power consumption device.
· It is available in different shapes and sizes, like rectangular circular.
· Different types of buzzer is having different specification.