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5V USB Ultrasonic Atomizer Module – 16mm 3MHz Driver Board with 300mL/H Mist Output

SKU: FA2212-1
Atomizer Diameter

16mm
Operating Voltage

5V DC (USB)
Ultrasonic Frequency

3MHz
Mist Output

Up to 300mL/H
Atomizer Type

Ceramic ultrasonic disc
Driver Type

Integrated on-board driver
Power Input

USB Type-A (or 5V DC terminals)
Mist Droplet Size

Ultra-fine (due to 3MHz frequency)

The 5V USB Ultrasonic Atomizer Module is a high-performance, compact misting solution designed for DIY humidifiers, portable misters, and air quality projects. It combines a 16mm ultrasonic atomizer disc with a 3MHz driver board on a single module, powered by a standard 5V USB supply. With a mist output of up to 300mL/H, this module delivers significantly higher mist volume than standard 20mm atomizers, making it ideal for applications requiring more substantial humidification.

At the heart of the module is a 16mm ceramic ultrasonic disc that vibrates at 3MHz — a much higher frequency than standard 108–115kHz atomizers. The higher frequency produces an ultra-fine mist with smaller droplet size, which is absorbed more efficiently into the air. This makes the module particularly suitable for personal humidification, aromatherapy, and cooling mist applications where fine, consistent mist is essential.

The driver board is integrated with the atomizer disc, eliminating the need for separate modules and complex wiring. The module is ready-to-use: simply connect the atomizer to the driver board, immerse it in water, and apply 5V USB power to begin misting.

The 5V USB power input makes the module extremely convenient to use — it can be powered from any USB port, power bank, phone charger, or computer. The low power consumption is suitable for portable and battery-powered applications, while still producing a high mist output.

The 300mL/H mist output is a key advantage of this module. Compared to standard 20mm atomizers that produce 100–200mL/H, this module delivers up to 300mL/H, making it suitable for larger personal spaces and more demanding humidification tasks.

The module is widely used in DIY humidifiers, portable misters, aromatherapy diffusers, desktop cooling fans, miniature fog machines, model-making effects, and educational science projects. It is also popular in commercial product development for small appliances and personal care devices.

Important Note: The atomizer disc must be fully immersed in water during operation. Do not operate the atomizer dry, as this will cause overheating and permanent damage. Use clean water (preferably distilled) to prevent mineral buildup on the disc. The driver board should be kept dry and away from water.

Whether you are building a custom humidifier, designing a portable mister, or adding high-output misting effects to a project, the 5V USB Ultrasonic Atomizer Module provides a reliable, high-performance solution. It is suitable for individual makers, students, and businesses purchasing in bulk for product development or educational programs.

Features

  • 16mm ultrasonic atomizer disc — Compact size with high mist output

  • 3MHz operating frequency — Ultra-fine mist with smaller droplet size

  • 300mL/H mist output — High volume for more demanding humidification

  • Integrated driver board — No separate driver module required

  • 5V USB power input — Convenient power from any USB source

  • Low power consumption — Suitable for portable and battery-powered applications

  • Ready-to-use kit — Includes atomizer disc and driver board

  • Compact form factor — Easy integration into custom enclosures

  • Wide application range — DIY humidifiers, misters, diffusers, cooling fans

  • High efficiency — Fine mist absorbed efficiently into the air

Technical Specifications 

# Parameter Specification
1 Atomizer Diameter 16mm
2 Operating Voltage 5V DC (USB)
3 Ultrasonic Frequency 3MHz
4 Mist Output Up to 300mL/H
5 Atomizer Type Ceramic ultrasonic disc
6 Driver Type Integrated on-board driver
7 Power Input USB Type-A (or 5V DC terminals)
8 Mist Droplet Size Ultra-fine (due to 3MHz frequency)

Usage

Getting Started

  1. Connect the atomizer — Attach the 16mm atomizer disc to the integrated driver board using the pre-attached wiring. Observe correct polarity.

  2. Immerse the atomizer — Place the atomizer disc fully submerged in water. Ensure the water level is sufficient to cover the disc completely.

  3. Connect power — Plug the driver board into a 5V USB power source (USB adapter, power bank, or computer). The atomizer will begin producing mist immediately.

  4. Verify operation — You should see fine mist rising from the water surface. If no mist is produced, check that the atomizer is fully immersed and the wiring is secure.

  5. Adjust positioning — For best results, keep the atomizer disc horizontal and at a consistent depth in the water.

Important Safety Notes

  • Do not operate dry — The atomizer disc must be fully immersed in water during operation. Dry operation will cause overheating and permanent damage.

  • Use clean water — Distilled or filtered water is recommended to prevent mineral buildup on the atomizer disc.

  • Keep driver dry — The driver board should be kept dry and away from water. Only the ceramic disc should be immersed.

  • Ventilation — Ensure adequate ventilation around the driver board during operation.

Typical Applications

  • DIY humidifiers — Build custom desktop humidifiers with high mist output

  • Portable misters — Personal cooling and humidity control on the go

  • Aromatherapy diffusers — Add essential oils for aromatic misting

  • Desktop cooling fans — Combine with a fan for evaporative cooling

  • Miniature fog machines — Small-scale theatrical effects

  • Model-making effects — Create fog and mist effects for dioramas

  • Educational science projects — Teaching ultrasonic atomization principles

  • Commercial product development — Prototype small appliances and personal care devices

Notes for Business Buyers

  • 3MHz operation — Higher frequency produces finer mist than standard 108–115kHz atomizers.

  • 300mL/H output — Higher mist volume than standard 20mm atomizers.

  • Integrated design — Atomizer and driver on one board simplifies assembly and reduces component count.

  • Suitable for bulk purchasing — Ideal for humidifier manufacturers, diffuser brands, and educational institutions.

Q: What is the 5V USB Ultrasonic Atomizer Module used for?

It is a DIY misting module for building custom humidifiers, portable misters, aromatherapy diffusers, and cooling mist applications.

Q: What is included in the kit?

The kit includes a 16mm ultrasonic atomizer disc and an integrated driver board with pre-attached wiring.

Q: How do I power the kit?

The kit is powered by a 5V USB source — any USB port, power bank, phone charger, or computer will work.

Q: What is the operating frequency?

The module operates at 3MHz, producing an ultra-fine mist with smaller droplet size.

Q: What is the mist output?

The module produces up to 300mL/H, higher than standard 20mm atomizers.

Q: Does the atomizer need to be submerged in water?

Yes. The atomizer disc must be fully immersed in water during operation. Dry operation will cause overheating and permanent damage.

Q: What type of water should I use?

Use distilled or filtered water to prevent mineral buildup on the atomizer disc.

Q: Can I use this kit with essential oils?

Yes. The kit can be used for aromatherapy by adding a few drops of essential oil to the water. However, oils may leave residue on the disc over time.

Q: What is the advantage of 3MHz frequency?

The 3MHz frequency produces a finer mist with smaller droplets, which is absorbed more efficiently into the air and provides better humidification coverage.

Q: Can I purchase in bulk for a product development project?

Yes. This module is suitable for both individual users and business purchasing, including humidifier manufacturers, diffuser brands, and educational institutions.

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