9GA0812S1621

Series:	San Ace 80
Part Status:	Active
Voltage - Rated:	12VDC
Size / Dimension:	Square - 80mm L x 80mm H
Width:	38.00mm
Air Flow:	91.8 CFM (2.57m³/min)
Static Pressure:	1.930 in H2O (480.8 Pa)
Bearing Type:	Ball
Fan Type:	Tubeaxial
Features:	Locked Rotor Protection
Noise:	59.0 dB(A)
Power (Watts):	11.28W
RPM:	9550 RPM
Termination:	2 Wire Leads
Ingress Protection:	--
Operating Temperature:	-4 ~ 158°F (-20 ~ 70°C)
Approvals:	CSA, TUV, UL
Weight:	0.353 lb (160.12g)
Current Rating:	0.940A
Voltage Range:	10.8 ~ 13.2VDC
Material - Frame:	Plastic
Material - Blade:	Plastic
Lifetime @ Temp.:	Varies Based on Temperature

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Introduction DC Fan

A DC fan is a type of fan driven by direct current (DC) power. This type of fan uses an electronically commutated motor, also known as an "EC motor" or "BLDC motor", with permanent-magnet (PM) rotor. Its operation is based on the principle of electromagnetic induction. The electronic commutation supplies the winding with controlled current direction and appropriate voltage drive, allowing the windings to excite the PM field and thereby develop the torque to drive the fan blades. The rotational speed is controlled by the DC voltage applied to the windings, typically by pulse width modulation (PWM) of the electronic commutation.DC fans are widely used in computer cooling, in automotive refrigeration systems, as aerodynamic propulsion systems, and in various compressed air and gas applications. They are most commonly found in computer systems where they are used to circulate air to cool both internal and external components.

9GA0812S1621 Application Field and Working Principle

The 9GA0812S1621 DC fan is an ideal choice for a wide range of cooling applications. It is particularly well suited for applications where low noise, high airflow, and long lifetime are important.The 9GA0812S1621 DC fan operates on the principle of electromagnetic induction. The fan is driven by an electronically commutated motor, also known as an "EC motor" or "BLDC motor", with a permanent-magnet (PM) rotor. Through the electronic commutation of the motor, the windings of the rotor are supplied with the appropriate current direction and voltage, allowing them to excite the PM field and develop the torque to drive the fan blades.The motor is controlled by varying the DC voltage applied to the windings, typically by pulse width modulation (PWM) of the electronic commutation. This allows for precise control of the fan speed and airflow, and is particularly useful for applications where noise levels need to be carefully managed.The 9GA0812S1621 fan is built with a sealed die cast aluminium frame, enclosed ball bearings for durability, and a pressure-balanced impeller for higher performance. It is also protected against over-current, over-temp, over-voltage, and shock. These combined features make the 9GA0812S1621 DC fan an excellent choice for a variety of applications.

Conclusion

DC fans are a versatile solution for a variety of cooling needs. The 9GA0812S1621 is an ideal choice for applications where low noise, high airflow, and long lifetime are important. It is built with a sealed die cast aluminium frame and enclosed ball bearings for durability, and a pressure-balanced impeller for higher performance. Its motor is controlled by varying the DC voltage applied to the windings, typically by pulse width modulation (PWM) of the electronic commutation. This allows for precise control of the fan speed and airflow, making the 9GA0812S1621 an excellent choice for a variety of cooling applications.

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