Categories
A piezo buzzer is a type of transducer that converts electrical energy into sound. The "9V" in 9V piezo buzzer indicates the typical operating voltage. At this voltage, the buzzer can produce a relatively loud and distinct sound. Piezo buzzers work on the principle of the piezoelectric effect.
Applications:
1. Alarm Systems
- In home security systems, a 9V piezo buzzer can be used as an audible alarm. When a sensor detects an intrusion, the control unit sends a signal to the buzzer, and it starts to emit a loud, continuous sound to alert the occupants or scare away potential intruders.
- Fire alarms also use piezo buzzers. In case of a fire, the detector activates the buzzer, which produces a characteristic beeping sound to warn people to evacuate.
2. Automotive Applications
- In cars, 9V piezo buzzers can be used for various warning functions. For example, when the seatbelt is not fastened, the vehicle's control system can activate the buzzer to remind the driver or passengers to buckle up.
- They can also be used in reverse - gear warning systems. When the car is put into reverse, the buzzer sounds to alert people in the vicinity that the vehicle is moving backwards.
3. Electronic Devices
- Many small electronic gadgets like digital clocks use 9V piezo buzzers for alarm functions. When the set time for an alarm arrives, the buzzer goes off to wake up the user.
- Some simple DIY electronics projects, such as homemade doorbells or simple notification systems, can also make use of 9V piezo buzzers.
Part Number：PQ272207-20C-2000-F
SPECIFICATIONS:
Rated Voltage (Vp-p) | 9.0 |
Operating Voltage (Vp-p) | 2~25 |
Rated Current (mA) | MAX.10.0 |
Sound Output at 10cm (dBA) | MIN.70 |
Static Capacitance At 120Hz (pF) | 20000±30% |
Resonant Frequency (Hz) | 2000 |
Operating Temperature (℃) | -20～+70 |
Storage Temperature (℃) | -30～+80 |
Housing material | MPPO |
DIMENSION:
Inquire Now
