Pest Repeller Piezo Electric Buzzer 400Hz 20mA Max. Current
|Min. Sound Output at 10cm (dB)||70||70||75||75|
|Rated Voltage (VDC)||1.5||3||6||12|
|Operating Voltage (VDC)||1~3||2~4||4~8||9~15|
|Resonant Frequency (Hz)||400+/-100||400+/-100||400+/-100||400+/-100|
|Max. Current Consumption (mA)||20||25||25||25|
|Operating Temperature (C)||-20~+60||-20~+60||-20~+60||-20~+60|
|Storage Temperature (C)||-30~+70||-30~+70||-30~+70||-30~+70|
Pins or wires type. Frequency is generally low. The mechanical
buzzer is a special electromagnetic buzzer,composed of oscillator,
the electromagnetic coil, the magnet and shell.Vibration piece is
installed on the shell.
Piezo buzzer is an electronic device commonly used to produce sound. Light
weight, simple construction and low price make it usable in various
applications like car/truck reversing indicator, computers, call
bells etc. It is the phenomena of generating electricity when
mechanical pressure is applied to certain materials and the vice
versa is also true.
Piezo electric materials are either naturally available or manmade.
Piezoceramic is class of manmade material.It poses piezo electric
effect and is widely used to make disc, the heart of piezo buzzer.
Applications for Buzzers:
Confirmation of user input (ex: mouse click or keystroke)