Multi Tone 95dB Active Piezo Buzzer Pinout
Model:KDB-43P-3.0C Brand:KD Dimension:43.5mm*34.5mm SPL:95dB min. at 12VDC 30cm(Continuous)
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Keywords:
Passive Piezo Buzzer、Active Piezo Buzzer、Piezo Element、Piezo Ultrasonic Component、Piezo Speaker
■ Data Sheet
| No. | Model No. | KDB-43P-3.0C |
| 1 | Sound Pressure Level | 95dB min. at 12VDC 30cm(Continuous) |
| 85dB min. at 12VDC 30cm( Pulse ) | ||
| 2 | Resonant Frequency | 2.9±0.5kHz |
| 3 | Operating Voltage | 4.0～16.0VDC |
| 4 | Current consumption | 20.0mA max. at 12VDC |
| 5 | Tone Nature | Continuous/ Pulse |
| 6 | Operating Temperature | -20℃～+70℃ |
| 7 | Storage Temperature | -30℃～+80℃ |
| 8 | Case Material: | ABS( Black ) |
| 9 | Weight | 47.2 g |
■ Dimension Drawing
The Multi Tone 95dB Active Piezo Buzzer is a versatile audio component designed for various electronic applications, and understanding its pinout is crucial for proper integration. This buzzer typically features two pins, each with distinct functions that enable its operation.
The first pin, often referred to as the positive terminal or VCC, is responsible for receiving the input voltage. This active buzzer requires a DC voltage supply, usually ranging from 3V to 24V depending on the specific model, to power its internal oscillator and piezoelectric element. Supplying the correct voltage to this pin ensures the buzzer can generate sound at its rated 95dB intensity, which is loud enough for applications like alarm systems, industrial equipment, and household devices.
The second pin is the ground terminal or GND. It serves as the return path for the electrical current, completing the circuit between the power supply and the buzzer. Proper connection of this pin to the system ground is essential for stable operation, as it prevents electrical noise and ensures the internal components function as intended. Without a secure ground connection, the buzzer may produce distorted sounds or fail to operate altogether.
One key feature of this active piezo buzzer is its multi-tone capability, which is made possible by its internal circuitry. Unlike passive buzzers that require an external AC signal to produce sound, the active version generates multiple tones through its built-in oscillator. This allows it to emit different frequencies and patterns, making it suitable for applications where varied audio alerts are needed, such as in automotive systems or security devices.
Another important aspect related to the pinout is the buzzer’s current consumption. When connected correctly via its pins, the device draws a moderate current, typically between 10mA and 30mA, depending on the supply voltage. This low power requirement makes it energy-efficient, ideal for battery-powered devices where power conservation is a priority.
Why Choose Our Piezo Buzzer
Piezo buzzers has been more and more popularily used as there is no magnetic field and no coil inside. Typically, piezo buzzers consume less current (less than 30mA), have a broader frequency range (2-6kHz) and wider operating voltage (3- 250V), and generate a higher SPL.
Kailitech piezo buzzers include types of taping, SMD, ultra-low frequency, high SPL, waterproof, high temperature and pressure resistant, with diameter or length and width fm 9.0mm to 100mm, height fm 1.8mm to 65mm, with resonant frequency range fm 200Hz to 15kHz and SPL range fm 65dB to 120dB. Housing material can be ABS, PBT, PPO, LCP, etc.
The main characteristics of Piezo Buzzers are >>
Smaller size, lighter weight, suitable for installation on various circuit boards.
High electric – acoustic power conversion efficiency (above 75%) .
Low power consumption, P≤3V*10mA=0.03W.
High reliability, long durability. The performance and degradation is the log relationship, and the degradation of performance is less than about 5% in 30 years.
No magnetic field, no coil, no electromagnetic interference.
Peizo Buzzers' Markets
Home Appliances
Medical Devices
Safety & Security
Transportation Equipment
Consumer Electronics
IOT
They all chose us
With 30 years of research and development experience, Kailitech is professional in design and develop piezoelectric components according to customer applications. "Customer-oriented, honest and trustworthy, innovative and continuously upgrading" is our aim. Kailitech will consistently provide customers with product value and technical services with rich industry experience and professional knowledge.
FAQ
What are the piezo sound component called?
Piezo Elements, Sounders, Transducers, buzzers, Audio alarms and indicators, and various combinations of these terms.
How does Kailitech sound component part number system works?
Kailitech part number system.
Please give me diagrams of the Feedback Electrode Shape and Recomend Driving Circut of your self drive type piezo transducers.
Recomend Driving Circut for seld drive piezo transducers.
Feedback electrode shape.
What are the mounting options?
Pin-type, Pin-type taping, SMD, Flange Mount & Terminal type.
What tones are available?
Continuous, Fast Pulse, Ultra Loud Siren, Ultra Loud Warble Series, and Continuous/Pulse Dual Tone.
How are they constructed?
Exploded piezo buzzer Diagram.
What are the mounting options?。
Pin-type, SMD, Flange Mount, Terminal type and Panel Screw Terminals.
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