This is a product specification for a miniature DC brushless blower (model 18x18x4mm-A Type) manufactured by Guangzhou Mega Technology Co., Ltd. This blower is compact in size (18mm x 18mm x 4mm), features a plastic frame and impeller (flammability rating UL94V-0), a sleeve bearing (hydraulic type), and weighs only 6g. Two models are offered: MG1804L3.3X (3.3V rated voltage, 10000RPM speed) and MG1804L05X (5V rated voltage, 13000RPM speed). The diagrams provide detailed electrical parameters (voltage, current, power, speed), airflow and air pressure data, as well as P@Q performance curves and dimensional drawings. This blower is suitable for space-constrained applications, such as small electronic devices.

Parameter Value

Product Type: DC  blower fan

1. Size: 18x18x4mm
2. Bearing Type: Bearing、sleeve、HY
3. Frame Material: Plastic (UL94V-0)
4. Blade Material: Plastic (UL94V-0)
5. Weight:6g
6. Rated Voltage: 3.3V,5V
7. Voltage Range: 2-6V
8. Rated Current:0.03-0.04A
9. Rated Input Power:0.1-0.2W
10. Speed:10000-13000RPM
11. Air Flow:0.14-0.2CFM
12. Maximum Air Pressure:3-6mH2O
13. Noise Level:19-21.7dB-A

Key Features and Advantages:

Key Features:

1. Miniature Design: Extremely small dimensions (18mm x 18mm x 4mm) make it suitable for space-constrained applications, such as small electronic devices, portable devices, wearable devices, etc.
2. Lightweight: Each fan weighs only 6g, adding minimal weight to the device.
3. Brushless Motor: Employs a DC brushless motor, offering advantages over traditional brushed motors, including longer lifespan, lower noise, and higher efficiency.
4. Flame-Retardant Materials: Both the frame and impeller are made of plastic with a UL94V-0 flammability rating, enhancing product safety.
5. Sleeve Bearing (Hydraulic Type): Uses a sleeve bearing (hydraulic type, HY), balancing cost and lifespan to some extent. Compared to ball bearings, it may be more cost-effective but potentially has a shorter lifespan.
6. Two Models Available: Offers two models, MG1804L3.3X and MG1804L05X, catering to different voltage and speed requirements.

Key Advantages:

1. Small Size and Light Weight: This is its most significant advantage, making it widely applicable in miniaturized devices.
2. Low Noise: Low noise levels (19dB-A and 21.7dB-A) make it suitable for noise-sensitive applications.
3. High Reliability: The use of a brushless motor and flame-retardant materials improves product reliability and safety.
4. Referable Performance Parameters: Provides detailed electrical parameters, airflow and air pressure data, and P@Q curves, making it convenient for users to select the appropriate model based on their actual needs.

Applications

1. Portable Electronic Devices:

1. Smartphones/Tablets: Used for internal heat dissipation, especially for heat generated by high-performance processors during operation. Due to the extremely limited internal space in smartphones and tablets, this type of miniature fan is very suitable.
2. Laptops/Ultrabooks: Used for auxiliary heat dissipation, especially in thin and light laptops where traditional cooling fans are too bulky. This miniature fan can better adapt to space constraints.
3. Wearable Devices: Such as smartwatches, smart bracelets, VR/AR headsets, etc. These devices have extremely high requirements for size and weight. Miniature fans can be used for heat dissipation to ensure stable long-term operation.
4. Portable Projectors/Micro-Projectors: Used for heat dissipation to prevent overheating of internal components from affecting image quality and lifespan.
5. Digital Cameras/Camcorders: Used for heat dissipation, especially when shooting high-definition video or during long periods of operation, effectively reducing sensor and processor temperatures.

2. Medical Equipment:

1. Portable Medical Devices: Such as portable pulse oximeters, electrocardiographs (ECGs), blood glucose meters, etc. These devices often require long-term use, and miniature fans can be used for heat dissipation to improve device reliability.
2. Small Medical Instruments: Such as miniature pumps, miniature valves, and other devices requiring precise control of airflow or fluid flow. Miniature fans can provide auxiliary airflow.

3. Industrial Control and Automation:

1. Small Control Cabinets/Distribution Boxes: Used for internal heat dissipation to prevent electronic components from overheating and failing.
2. Automated Equipment/Robots: Used for localized heat dissipation, such as for drive motors and control circuits.
3. Sensors/Actuators: Some temperature-sensitive sensors or actuators can use miniature fans for heat dissipation to improve measurement accuracy and operational stability.

4. Consumer Electronics Products:

1. Set-Top Boxes/Network Media Players: Used for heat dissipation to prevent freezing or performance degradation caused by long-term operation.
2. Smart Home Devices: Such as smart speakers and smart cameras, used for internal heat dissipation to improve device stability and lifespan.
3. Drones/Model Aircraft: Used for cooling motors and electronic speed controllers (ESCs) to ensure flight performance and safety.

5. Other Applications:

1. Automotive Electronics: Such as car navigation systems and dashcams, used for heat dissipation.
2. LED Lighting: Used for heat dissipation to improve the lifespan and luminous efficiency of LED lamps.

Our advantage
Guangzhou Mega Technology Co., Ltd. is located in Guangzhou, Guangdong Province. We benchmark against leading cooling fan manufacturers like Delta Electronics, Nidec Corporation, Sunon, Sanyo Denki, and Orion Fans. Offering AC, DC, and EC fans, we provide customized cooling solutions for various industrial and commercial applications. Our strong R&D and technical expertise ensure our products match top manufacturers’ performance at significantly lower prices.

We pride ourselves on delivering tailored solutions to meet unique client needs. Our team collaborates closely with customers to design products that optimize cooling performance, energy efficiency, and reliability. Whether for electronic devices, industrial machinery, or commercial systems, Guangzhou Mega Technology Co., Ltd. is dedicated to providing high-quality, cost-effective solutions that exceed expectations. Our commitment to innovation and customer satisfaction keeps us at the forefront of the cooling fan industry.