255H

Power (Watts):	600mW
Lifetime @ Temp.:	35000 Hrs @ 20°C
Material - Blade:	Polyamide (PA), Nylon, Fiberglass Reinforced
Material - Frame:	Polybutylene Terephthalate (PBT), Fiberglass Reinforced
Voltage Range:	4.5 ~ 5.5VDC
Current Rating:	--
Weight:	0.011 lb (4.99g)
Approvals:	CE, CSA, UL, VDE
Operating Temperature:	14 ~ 131°F (-10 ~ 55°C)
Ingress Protection:	--
Termination:	2 Wire Leads
RPM:	12000 RPM
Series:	250
Noise:	23.0 dB(A)
Features:	--
Fan Type:	Tubeaxial
Bearing Type:	Sintec
Static Pressure:	--
Air Flow:	2.6 CFM (0.073m³/min)
Width:	8.00mm
Size / Dimension:	Square - 25mm L x 25mm H
Voltage - Rated:	5VDC
Part Status:	Active

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DC Fans

DC fans are a type of fan featuring direct current electrical input. Often, DC fans come in two varieties: DC brushless fans, which have low speed but are energy efficient and fairly quiet, and DC axial fans, which typically come with variable speed controls. With an active and versatile design and wide selection of sizes and capabilities, DC fans can be found in many consumer applications such as PC heat sinks, computer enclosures, and even in HVAC systems.

255H Application Field

The 255H is a type of DC fan, specifically an axial fan, featuring a sleeve bearing design and a medium-sized diameter to circulate airflow across diverse applications. It was designed for use in more demanding applications, offering high performance cooling solutions for a variety of electronics. Some of the common applications for the 255H include, but are not limited to, CPU and graphic card coolers, power supplies, and industrial controllers.

255H Working Principle

The 255H DC fan operates on the principle of generating airflow through a spinning impeller. The impeller blades are designed to flow air in a particular direction, and as the impeller spins, it draws in air from one side of the fan, and projects it into the exhaust side, thus generating a current of airflow.The 255H also comes with an internal voltage regulator, which allows users to change the speed of the fan easily, by changing the voltage that the fan receives. Because of the efficient voltage regulation, there is very little noise generated by the fan, and the low power draw makes it energy efficient.The 255H also features a reverse air-flow capability, enabling it to act as a suction fan as well, for applications that require a vacuum source.

Conclusion

DC fans are a great option for cooling, due to their efficient airflow and designs that allow them to be used in a wide number of applications. The 255H DC fan is a great example of this, with features that enable it to be used for both high-volume airflow applications and suction applications. By changing the voltage and altering the speed, users can customize the 255H to fit their cooling needs.

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Part Number	Manufacturer	Price	Quantity	Description