Description
The Sunon EF70251B1-C020-G99 is a high-performance DC Blower Fan with dimensions of 70 x 70 x 25 mm. Operating on 12 V DC with a rated power of 4.56 W, this centrifugal blower is engineered for applications requiring concentrated airflow and high static pressure. Featuring a robust brushless DC motor and a specialized housing design, it provides an efficient thermal management solution for projectors, automotive electronics, and industrial equipment where space-constrained cooling is essential.
EF70251B1-C020-G99 Fan Parameters
Model: EF70251B1-C020-G99
Manufacturer: Sunon
Type: DC Blower Fan
Series: EF Series
Dimensions: 70 x 70 x 25 mm
Nominal Voltage: 12 V DC
Operating Voltage Range: 6.0 V DC to 13.8 V DC
Starting Voltage: 6.0 V DC
Rated Current: 0.38 A
Rated Input Power: 4.56 W
Number of Blades: 7
Motor Design: Brushless DC Motor
Rated Speed: 4500 RPM
Max. Airflow: 68 m³/h (40.0 CFM)
Max. Static Pressure: 55 Pa (0.22 inAq)
Noise Level: 42.0 dB(A)
Bearing Type: Dual Ball Bearing
Electrical Protection: Auto Restart, Polarity Protection
Termination: 3 Wire Leads
Sensor Type: Tachometer (Speed Sensor)
Frame Material: Thermoplastic PBT (UL 94V-0)
Impeller Material: Thermoplastic PBT (UL 94V-0)
Life Expectancy: 70,000 h (at 40 °C)
Operating Temperature Range: -10 °C to +70 °C
Storage Temperature Range: -40 °C to +70 °C
Certifications: CE, TUV, UL/cUL, RoHS
Application
The Sunon EF70251B1-C020-G99 blower is specifically designed for localized high-heat dissipation in industrial and consumer electronics. Its centrifugal design makes it the preferred cooling component for digital projectors, where it effectively directs air through dense optical engines. Additionally, it is widely used in automotive seat ventilation, fuel cell thermal management, and compact 3D printers where the high-pressure output of a blower is required to overcome airflow resistance in narrow ducting or heat sinks.
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