Mini USB Nebulizer Circuit 5VDC 2W 108Khz

Overview

A Mini USB Nebulizer Circuit (5V, 2W, 108 kHz) is an ultrasonic module used to convert water or liquid into a fine mist (fog).

Commonly used in:

• Portable humidifiers

• Aroma diffusers

• Nebulizers (basic DIY/consumer devices)

• Plant humidification systems

Working Principle

The circuit works using ultrasonic atomization:

• A piezoelectric ceramic disc vibrates at 108 kHz (ultrasonic frequency)

• These vibrations break water into tiny droplets (mist)

• The mist is released into the air

Based on the concept of Piezoelectric Effect

Infographic Summary

PrNEBULIZER MODULE Voltage: 5V DC (USB) Power: 2W Frequency: 108 kHz Output: Fine mist Tech: Ultrasonic Input: USB powered

Basic Connection

requency: 108 kHz ultrasonic vibration

Mist Output: Fine micro-particles (~15 m)

Continuous operation supported

Includes: Driver circuit + atomizer disc

Key Features

• Produces ultra-fine mist

• Easy USB power supply

• Low power consumption

• Silent operation (ultrasonic)

• Compact and portable

• Efficient water atomization

Applications

• Mini humidifiers

• Essential oil diffusers

• DIY nebulizer devices

• Plant moisture control

• Decorative mist/fog effects

• Car ai>high-frequency signal (108 kHz)

• Piezo disc vibrates rapidly

• Water surface breaks into mist

• Fan (optional) blows mist outward

Important Notes

• Must always have water contact (dry run can damage disc)

• Use clean/distilled water to avoid scaling

• Fragile ceramic disc (handle carefully)

• Not suitable for thick liquids

Practical tip:

Mineral deposits from hard water reduce efficiency over time

Ultrasonic Nebulizer vs Heating Type

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Pro Tip

To build a smart humidifier project:

• Nebulizer module + Fan

• Water level sensor (float switch)

• Microcontroller (Arduino/ESP32)

Automatically control humi