F251R-12LLC

Power (Watts):	360mW
Lifetime @ Temp.:	--
Material - Blade:	Acrylic Butadiene Styrene (ABS), Polybutylene Terephthalate (PBT)
Material - Frame:	Acrylic Butadiene Styrene (ABS), Polybutylene Terephthalate (PBT)
Voltage Range:	10.2 ~ 13.8VDC
Current Rating:	0.030A
Weight:	0.015 lb (6.8g)
Approvals:	--
Operating Temperature:	14 ~ 140°F (-10 ~ 60°C)
Ingress Protection:	--
Termination:	2 Wire Leads
RPM:	6500 RPM
Series:	F251R
Noise:	11.0 dB(A)
Features:	--
Fan Type:	Tubeaxial
Bearing Type:	Sleeve
Static Pressure:	0.080 in H2O (19.9 Pa)
Air Flow:	1.4 CFM (0.039m³/min)
Width:	10.00mm
Size / Dimension:	Square - 25mm L x 25mm H
Voltage - Rated:	12VDC
Part Status:	Active

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Introduction
DC Fans are essential components in the electrical apparatus which drive air over components, heat sinks and other places that require cooling. The F251R-12LLC is a typical DC Fan, that is widely used for applications such as cooling of industrial equipment and computers, and is suitable for various industrial requirements. This article will explain the features, application field and working principle of the F251R-12LLC.

Features
The F251R-12LLC is a low noise DC fan, that is also known as a quiet and efficient cooling solution. It has a respectable air flow of 80.2~153.5CFM and a high static pressure of 1.2 ~ 4.00mm H20. It also has noise levels ranging from 23.00~36.00db (A) and can generate ultra-low noise at low speed. It is approved by CE, UL and features a long life of up to 50,000 hours. Moreover, the F251R-12LLC has a wide operating temperature range of -40 ~ 70℃ and a diverse range of voltage input such as 24,12 or 5 VDC. It is also provided with a nice design and packaging.

Application Field
The F251R-12LLC is suitable for a wide range of applications, such as cooling industrial equipments and computers, and can be used in industrial computers, electronic equipment, communication equipments, medical instruments and control equipments. It is also suitable for cooling hubs, switches, routers, USB ports, processors, etc. Moreover, it can be used in different environments such as high temperature, humidity, dust or vibration.

Working Principle
The fan\'s operation is based on the working principle of induction. An electric current is applied to the stator of the motor, the fan blades will move when the electromagnet is generated in the stator and thus an air flow is created. The air flows generated by the fan can be adjusted by controlling the speed of the motor i.e. the fan will generate a higher air flow when the speed of the motor is increased. Moreover, the motor can be reversed in order to reduce the air flow or to reverse the direction of the air flow.

Conclusion
The F251R-12LLC is a typical DC fan that can be used to generate an air flow for cooling down different components and equipments. Its features include a low noise generation, a wide operating temperature range, and a long life of up to 50,000 hours. In addition, its application field is diverse, and it is suitable for cooling down various components such as industrial equipments and computers. Furthermore, its working principle is based on induction, and it can be adjusted by controlling the speed of the motor.

The specific data is subject to PDF, and the above content is for reference

Part Number	Manufacturer	Price	Quantity	Description