20mm 2.4MHz Piezoelectric Ultrasonic Atomizer Plate
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Prices updated: 13 Oct 2026
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About this product
A 20 mm piezoelectric ceramic atomizer disc that vibrates at about 2.4 MHz when driven by a high-frequency oscillator circuit. It is used in ultrasonic humidifiers and mist-generating projects, where the vibration breaks water into a fine mist. The listing includes a 2.5 cm sealing ring.
Specifications
- Frequency
- 2.4 MHz
- Diameter
- 20 mm (2 cm)
- Sealing ring diameter
- 2.5 cm
- Material
- Ceramic
Frequently asked questions
Can I connect it directly to an Arduino pin?
No. The atomizer needs a high-frequency oscillator or driver circuit. A microcontroller GPIO pin cannot drive it directly.
What is the sealing ring used for?
The sealing ring is used to fit and seal the atomizer into a housing or water chamber so that water reaches the ceramic surface correctly.
