PRODUCTS CENTER
Specialized in manufacturing piezoelectric buzzer, sensor, transducers.
Piezo Element
Passive Piezo Buzzer
Active Piezo Buzzer
Piezo Speaker
Piezo Ultrasonic Component
Piezo Element
Piezo elements are energy conversion devices, with the unique characteristics of elongating or vibration when applying external voltages, and vise versa, generating electricity when external pressure is applied.
Applications of such energy conversion technology includes piezo igntion, piezo switch, piezo microphone, piezo audio amplifier, piezo motor, piezo buzzers, piezo actuators, piezo sensors and ultrasonic transducers, and etc.
3.2khz Acoustic Transducer External Drive Piezo Element
Model:KD-34.5S-32E Dimension:34.55mm*0.55mm Resonant Frequency:3.2±0.5 kHz
1.5khz Acoustic Transducer External Drive Piezo Element
Model:KD-35B-15TE Dimension:35mm*0.22mm Resonant Frequency:1.5±0.5kHz
1.3khz Acoustic Transducer External Drive Piezo Element
Model:KD-41B-13TE Brand:KD Dimension:41mm*0.22mm Resonant Frequency:1.3±0.5kHz
10.0khz Acoustic Transducer External Drive Piezo Element
Model:KD-12BH10-10TE Brand:KD Dimension:12mm*10mm*0.22mm Resonant Frequency:10.0±0.5kHz
Double-sided 13khz Trigger External Drive Piezo Element
Model:KD-13B2L-13E Brand:KD Dimension:13mm*13mm Resonant Frequency:13.0±1.0kHz
piezoelectric 4.0khz Trigger External Drive Piezo Element
Model:KD Special Type Piezo Elements Brand:KD Resonant Frequency:4.0±0.5～13.0±0.5
Passive Piezo Buzzer
A buzzer or beeper is an audio signaling device, which may be mechanical, electromechanical, or piezoelectric. Piezoelectric buzzers, or piezo buzzers, are devided into 3 main types: passvie piezo buzzers, active piezo buzzers and self drive piezo buzzers.
Passive piezo buzzers, also known as piezo transducers, consist of a casing, a piezo element and a terminal, and you need external driving signal to operate the buzzer, therefore, with greater range of flexibility of frequencies when designing PCB circuit.
Surface Mount Device 3V Passive Piezo Buzzer
Model No.：KDSMD-0909A-4.0 Sound Output Level：70 dB Min at 4.1kHz Square Wave/10cm Rated Voltage：3Vp-p
Surface Mount Device 3V Passive SMD Piezo Buzzer
Model:KDSMD-1109A-4.1 Brand:KD Dimension:11mm*9mm*1.7mm SPL:68dB min. at 4.1kHz
Square 4000Hz Passive SMD Piezo Buzzer
Model:KDSMD-1212A-4.0 Brand:KD Dimension:12mm*12mm*3mm
Surface Mount Device 5V Passive Piezo Buzzer
Model No：KDSMD-1313A-4.1 Sound Output Level：80 dB Min at 4.1kHz Square Wave/10cm Rated Voltage：5 Vp-p Input Voltage：25 Vp-p Max Resonance Frequency：4.1±0.3kHz
4000Hz Passive SMD Piezo Buzzer for Alert
Model:KDSMD-1616A-4.0 Brand:KD Dimension:16mm*16mm*3mm SPL:75dB min. at 4.0kHz
Security Alarm 5v Passive SMD Piezo Buzzer
Model:KDSMD-14A-4.0 Brand:KD Dimension:14.2mm*6.0mm SPL:82dB min. at 4.0kHz
Active Piezo Buzzer
There are many types of piezo buzzers, which can be classified according to current, structure and driving mode. Among them, the most common ones are active piezo buzzers and passive piezo buzzers.
Active piezo buzzers, also known as piezo indicators, have the driving circuit built into the design, operating on a fixed frequency. Active piezo buzzers are easy to operate and make louder sound comparatively, and engineers do not need to design a complex circuit to drive the buzzer.
85dB Medical Alert Active Piezo Buzzer Pinout
Model:KDB-14P-4.0A Dimension:14mm*7.5mm SPL:85dB min. at 12VDC
90dB Medical Alert Active Piezo Buzzer
Model:KDB-23P-3.3A Dimension:23mm*19mm SPL:90dB min. at 12VDC
95dB Medical Alert Active Piezo Buzzer Pinout
Model:KDB-26P-2.8A Brand:KD Dimension:26mm*22mm SPL:95dB min. at 12VDC
Fast Pulse 90dB Active Piezo Buzzer Pinout
Model:KDB-36P-2.9E Brand:KD Dimension:36mm*39.5mm SPL:90dB min. at 12VDC /60cm
90dB Active Piezo Buzzer Pinout
Model:KDB-43P-3.0A Brand:KD Dimension:43.5mm*34.5mm SPL:90dB min. at 12VDC
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)
Piezo Speaker
A piezoelectric speaker, also called a "piezo" buzzer or beep speaker) is a loudspeaker that uses the piezoelectric effect for generating sound.
Compared to other speaker designs, piezoelectric speakers are relatively easy to drive, typically operating well in the range of 1-5 kHz and up to 100 kHz in ultrasound applications. Kailitech model KDS-38P-20A is an example of ultrasonic piezo speaker for ultrasonic animal repellers. Piezo ultrasonic loudspeakers produce different sound frequencies depending on the animal species to repel.
Model: KD-L35.5×15-0.8-1.8-17 Dimension: 35.5mm*15mm*0.8mm SPL: 90dB ±5.0dB@1.8±0.2kHz
38mm Ultrasonic Tweeter Piezo Speaker
Model: KDS-38P-20A Brand:KD Dimension:37.8mm*12.5mm SPL:95dB min.at 20kHz Resonant Frequency:4.0 kHz～40.0 kHz
Model:KDS9515 Brand:KD Dimension:94.2mm*15mm SPL:80dB min.at 1.0kHz
Piezo Ultrasonic Component
Piezo ultrasonic transducers and sensors are devices that generate or sense ultrasound energy. Piezo ultrasonic components can be divided into three categories: transmitters, receivers and transceivers. Transmitters convert electrical signals into ultrasound, receivers convert ultrasound into electrical signals, and transceivers can both transmit and receive ultrasound.
The application of piezo ultrasonic components can be for measuring wind speed and direction, fluid level, and speed in air or water. Further applications of piezo ultrasonic components include humidifiers, sonar, medical ultrasonography, burglar alarms, non-destructive testing and wireless charging.
Kailitech featured piezo ultrasonic products include ceramic discs, rings, half-moon, plates and stacks, for the main applications of ultrasonic welding, cleaning atomization transducers, ultrasonic fetal doppler, ultrasonic flow meter, ultrasonic pressure sensors, piezo transducers for vibration, mater dispersion and energy harvesting and etc. with features of low heat, high efficiency, high temperature resistance and high reliability, nonmagnetic and nonradiative, and custom dimensions available.
This piezo ceramic cylinder is radial mode vibration and is ideal for precision ultrasonic applications where compact size, resonant efficiency, and reliability are critical. Its 169 kHz frequency balances penetration depth and resolution, making it versatile for industrial and medical systems.
Peak voltage : VPP:2000V Dielectric Loss : tanδ ≤2.5% Static Capacitance : C0=15nF±20% @ 1kHz
Peak voltage : VPP:2000V Dielectric Loss : tanδ ≤2.5% Static Capacitance : C0=15nF±20% @ 1kHz
Physiotherapy Transducer Probe
Driving voltage : DC12～24V Dielectric Loss : tanδ≤0.5% Static Capacitance : C0=3500PF±15% at1KHz
Physiotherapy Transducer Probe
Model: KDT40S-1M-01 Brand:KD Dimension:1φ40×32mm Resonance Frequency: Ft=1±0.1MHz
113khz Fogger Piezo Atomizing Transducer with Wire
Model:KD-20SR-113EW70 Brand:KD Dimension:20mm*0.7mm Resonant Frequency:113.0±5.0kHz
Home Appliances
Piezo buzzers are suitable for all kinds of home appliances where a prompt tone for settings or the indication tone for completion is required, such as air conditioners, refrigerators, washing machines, micro ovens, rice cookers, Induction cookers and high speed blenders…..
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Medical Devices
Kailitech has been contributing our part in the fighting with COVID-19 pandemic with related products including piezo ultrasonic transducers for mask welding machines, piezo ceramic elements and transducers for thermometers, pulse oximeters, blood glucose meters, blood pressure monitors, ventilators and so on.
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Safety & Security
Piezo buzzers are applied in different areas needing to send a signal or warning to other individuals, for instance, a door buzzer alarm to assist visitors to alert for door opening. Piezo alarm buzzers are also commonly used in smoke detectors in hotels, residential homes, etc.
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Transportation Equipment
Comparing to magnetic buzzers, Piezo buzzers have wider operating voltage 3～250V and higher sound pressure level, therefore, piezo buzzers are widely used in most vehicles for various purposes, for example, a reversing sound alert or a reminding sound alert for safety belts.
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Consumer Electronics
Made of brass and ceramic, temperature resistant, durable and long service life, piezo elements, especially pre-wired, also known as piezo pick-ups, are widely used in various kinds of consumer electronics, such as foot stompers, electric drums, guitars and home-made instruments for sound and vibration detection. Piezo pickups generate sound by detecting vibration of the guitars saddle, it sounds extremely bright and clear, pronounced and transparent, with minimal feedback, and without ear-splitting feedback or hum.
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IOT
In summary, due to multiple features, piezo buzzers are playing vital roles in the applications to create attention, sending signals or pass a warning. Kailitech piezo transducers and buzzers have been widely utilized in various fields including home & industrial security, fire safety, healthcare equipment, medical devices, home appliances, automotive audio, video games, pressure and humidity sensing products.
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To be the World’s Leading Manufacturer of Piezo Ceramic Industry.
Invention Patent
Kailitech has been certified to comply with the Intellectual Property Management System.
Quality Assurance
Kailitech carries out international ISO9001 full quality control system since 2004.
Wide Application
Kailitech products have been widely utilized in various fields including home & industrial security, fire safety, healthcare equipment.
Factory Scale
Kailitech has an independent factory area of 8,000 square meters, with about 200 well-trained employees.
Professional Piezo Buzzer Manufacturer
✔ 30 Years Professional Experience
✔ ISO9001 certified since 2004
✔ EU/RoHs complaint since 2004
✔ National High Tech Enterprises since 2016
✔ IPMS certified since 2017
✔ Key drafting unit of Industry Standards:
"Piezoelectric Acoustic Components”,
“General Specification for Laminated Piezo Ceramic Actuators” and
"Reliability Test Methods for Piezo Electro-acoustic Components".
Industry experience
Independent plant
Trained staff
Monthly production capacity
Products exported to countries
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