DC 5V Ultrasonic Humidifiers Power Circuit Board with Atomizing Chip

(3 customer reviews)

In stock

SKU: 189481
  1. Low noise operation.
  2. Small fog particles.
  3.  High stability.
  4. Driving Voltage: DC 3-12V.
  5. High Conversion Efficiency.
  6. Low Impedance Stable Waveform.


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Category: Ultrasonic Humidifier Module
Tags: Humidifier, Ultrasonic Mist Maker, Ultrasonic Humidifier, mist generator

This DC 5V Ultrasonic Humidifiers Power Circuit Board with Atomizing Chip Moisture Film Humidification atomization machine is; suitable for the atomization plate tablet with a diameter of 20mm. This Ultrasonic Humidifier Piezoelectric Transmitter module works on the principle of cavitation produced by sound waves. Just provide the DC3-12V power supply it will turn into a mini ultrasonic atomizer.

As sound waves contain compression and rarefaction. Due to extremely rapid movement, water droplets can no longer sustain their liquid state and gets converted into vapor immediately. This vibration is produced by a piezoelectric filament.

The Ultrasonic Principle of Operation

A piezoelectric transducer immersed in a water bed, converts a high frequency, electronic signal into a high-frequency mechanical oscillation.  As the oscillation speed is increased to a level where the water particles can no longer follow the oscillating surface, a momentary vacuum and strong compression occur, leading to the explosive formation of air bubbles (cavitation).  At cavitation, broken capillary waves are generated, and tiny (1-micron diameter) droplets break the surface tension of the water and are quickly dissipated into the air, taking vapor form and absorbed into the air stream.

Note: This Module Needs USB to 3.5mm male jack Power cable to drive, which is not included in a package. you have to buy it Separately.

Note : Actual may vary in terms of SMD components mounting.


  1. Low noise operation.
  2. Small fog particles.
  3.  Long operation life.
  4.  High stability.
  5. Driving Voltage: DC 3-12V.
  6. High Conversion Efficiency.
  7. Low Impedance Stable Waveform.
  8. Low Dielectric Loss.
  9. Strong Corrosion Resistance.
  10. Applications: for high-end toys, micro humidifier, etc 113±3 KHz 3000±15% ρF.

Package Includes:

1 x DC 5V Ultrasonic Humidifiers Power Circuit Board & Atomizing Chip.

Rated Power

2.5W (normal use 1.5W)

Oscillator Diameter (mm)


Oscillator Cable Length (mm)


Length (mm):


Width (mm):


Height (mm):


Weight (g):


Shipping Weight 0.015 kg
Shipping Dimensions 6 × 4 × 1 cm
15 Days Warranty

This item is covered with a standard warranty of 15 days from the time of delivery against manufacturing defects only. This warranty is given for the benefit of Robu customers from any kind of manufacturing defects.  Reimbursement or replacement will be done against manufacturing defects.

What voids warranty:

If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.

Based on 3 reviews

4.0 overall

Add a review

  1. Skanda

    This product is amazing


  2. adkad1991 (verified owner)

    I will advice to connect the mist generator to a constant DC power supplier, then this equipment works very well at even 3V. Batteries for some reason drains quickly.


  3. adkad1991 (verified owner)

    Works well but produces less mist as compared to ₹450 mist generators used for decoration. 5V is not enough instead it is better to directly connect 9V battery 🙂


Questions and answers of the customers

    Can it be used to atomize oil?
  1. 0 votes
    Q Can it be used to atomize oil? answer now
    Asked by venkathussey on March 30, 2023 9:44 pm

    No, only for water droplets.

  2. can the transducer be immersed in water completely
  3. 0 votes
    Q can the transducer be immersed in water completely answer now
    Asked by hvmulay on September 28, 2021 4:47 pm


    A I tried it but it did not produce any fog.
  4. can we connect it to a 12V dc phone charger
  5. 0 votes
    Q can we connect it to a 12V dc phone charger answer now
    Asked by aaronstanlymathew on November 11, 2020 10:59 am
    A Yes you can use 12v as it is mentioned here.
  6. What is the connector type?
  7. 0 votes
    Q What is the connector type? answer now
    Asked by aleemshaik.ahmed on October 9, 2020 5:22 am
    A It has a DC barrel jack
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Country Of Origin: China