Mini Humidifier Atomizer Module – 5V 2.5W USB Kit with Integrated Driver Board & 115kHz 20mm Ceramic Oscillator (Ready-to-Use) (Type B)

SKU: FA2212-0
Oscillator Diameter

20mm

Operating Voltage

5V DC (USB)

Power Consumption

2.5W

Ultrasonic Frequency

115kHz

Oscillator Type

Ceramic ultrasonic disc

Mist Output

Fine mist, suitable for small spaces

Oscillator Lifespan

3000–5000 hours (typical)

Driver Type

Integrated on-board driver

The Mini Humidifier Atomizer Module (Type B) is a compact, ready-to-use DIY humidifier kit designed for small-scale misting, humidification, and aromatherapy projects. It combines a 20mm ceramic ultrasonic oscillator with an integrated driver board on a single module, powered by a standard 5V USB supply. This makes it an ideal solution for custom humidifiers, desktop misters, aromatherapy diffusers, and DIY electronics projects requiring reliable ultrasonic atomization.

At the heart of the kit is a 20mm ceramic oscillator that vibrates at 115kHz — a higher frequency than many standard atomizers — producing an exceptionally fine, consistent mist. The integrated driver board handles the high-frequency oscillation, eliminating the need for separate driver 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 kit extremely convenient to use — it can be powered from any USB port, power bank, phone charger, or computer. The 2.5W power consumption is low enough for portable and battery-powered applications, while still producing a visible, consistent mist output suitable for personal spaces.

The Type B designation indicates the specific atomizer disc type and driver configuration, which is optimized for the 115kHz operating frequency and provides reliable, long-lasting performance. The ceramic oscillator is designed for continuous operation when properly immersed in water, with a typical lifespan of 3000–5000 hours.

The module is widely used in DIY humidifiers, aromatherapy diffusers, desktop misters, 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.

The kit includes the 20mm ceramic oscillator and the integrated driver board, with pre-attached wiring for easy connection. The compact form factor allows integration into small enclosures, bottles, and custom housings.

Important Note: The ceramic oscillator 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 an aromatherapy diffuser, or adding misting effects to a project, the Mini Humidifier Atomizer Module (Type B) provides a reliable, integrated solution. It is suitable for individual makers, students, and businesses purchasing in bulk for product development or educational programs.

Features

  • 20mm ceramic ultrasonic oscillator — Fine mist output for small-scale humidification

  • 115kHz operating frequency — Higher frequency for finer, more consistent mist

  • Integrated driver board — No separate driver module required

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

  • 2.5W low power consumption — Suitable for portable and battery-powered applications

  • Type B configuration — Optimized oscillator and driver pairing for 115kHz operation

  • Ready-to-use kit — Includes oscillator and driver board with pre-attached wiring

  • Compact form factor — Easy integration into custom enclosures and bottles

  • Long oscillator lifespan — 3000–5000 hours typical

  • Wide application range — DIY humidifiers, diffusers, misters, model effects, education

Technical Specifications 

# Parameter Specification
1 Oscillator Diameter 20mm
2 Operating Voltage 5V DC (USB)
3 Power Consumption 2.5W
4 Ultrasonic Frequency 115kHz
5 Oscillator Type Ceramic ultrasonic disc
6 Mist Output Fine mist, suitable for small spaces
7 Oscillator Lifespan 3000–5000 hours (typical)
8 Driver Type Integrated on-board driver

Usage

Getting Started

  1. Connect the oscillator — Attach the 20mm ceramic oscillator to the integrated driver board using the pre-attached wiring. Observe correct polarity.

  2. Immerse the oscillator — Place the ceramic 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 oscillator is fully immersed and the wiring is secure.

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

Important Safety Notes

  • Do not operate dry — The ceramic oscillator 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 oscillator 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

  • Aromatherapy diffusers — Add essential oils for aromatic misting

  • Desktop misters — Personal cooling and humidity control

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

  • Miniature fog machines — Small-scale theatrical effects

  • Educational science projects — Teaching ultrasonic atomization principles

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

Notes for Business Buyers

  • 115kHz operation — Higher frequency produces finer mist than standard 108–113kHz atomizers.

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

  • USB-powered convenience — Standard 5V input makes the kit compatible with widely available power sources.

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

Q: What is the Mini Humidifier Atomizer Module (Type B) used for?

It is a DIY humidifier module for building custom humidifiers, aromatherapy diffusers, desktop misters, and misting effects in small-scale projects.

Q: What is included in the kit?

The kit includes a 20mm ceramic ultrasonic oscillator 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 of this atomizer?

This module operates at 115kHz, producing a finer mist than standard 108–113kHz atomizers.

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

Yes. The ceramic oscillator 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 oscillator disc, which can reduce performance and lifespan.

Q: How long does the oscillator last?

The ceramic oscillator has a typical lifespan of 3000–5000 hours with proper use and maintenance.

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 difference between Type A and Type B?

The Type B module operates at 115kHz with a 2.5W power rating, while Type A typically operates at 108–113kHz with 2W. Type B produces a finer mist due to the higher frequency.

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

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