While energy-saving technologies in electronics are gaining ground, it is unlikely that mechanical cooling devices will ever be completely abandoned. Currently, in this area, apart from liquid cooling systems, fans installed in casings are most often used. Although most electronic devices are sufficient to function properly passive cooling, provided by both radiation and convection (heat "escapes up") and conduction (heat is dissipated through paths and vias on the PCB), the controls, processors and high computing power, power amplifiers or power supply systems, however, can generate large amounts of heat that cannot be dissipated using simple methods. For this reason, the best solution is to use the appropriate fans. In this category, we offer a wide range of fans that significantly support the cooling process and heat dissipation in computers and other electronic devices.
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Male mounting strip, 4-pin, 3.5mm raster, vertical, built-in
Index: MAR-16383
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Mounted fans
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Fan 5V 30x30x8 mm for Raspberry Pi case
Low-noise 30 x 30 mm fan for Raspberry Pi. It is equipped with a two-pin GPIO raspberry fan. The fan features a slim design - 8 mm and low noise level. Screws and mounting nuts...
Index: LON-15170
Index: LON-15170
Fan 12V 40x40x10mm 2 wires - JST 2pin 2,54mm connector
The brushless fan is powered by 12 V . It is made of plastic. It has two 27 cm long cables ended with 2-pin JST 2.54 mm connector . Fan rotation speed is 4666 rpm. Service...
Index: DNG-18681
Index: DNG-18681
The fan with the input voltage of 12 V and a size of 80 x 80 x 25 mm.
Index: MOT-03876
Index: MOT-03876
5V fan 30x30x7mm - for Raspberry Pi case
Small 5V fan with dimensions of 30 x 30 x 7 mm . Can be used as a cooling element in Raspberry Pi cases. Equipped with two-pin connector for connection with GPIO of...
Index: DNG-18675
Index: DNG-18675
Blower Fan Creality 24V 40x40x10mm for Ender 3
Original Creality fan designed for Ender series 3D Printers, mounted on the printer head. Fan with input voltage 24 V and dimensions of 40 x 40 x 10 mm. It has two...
Index: CRL-15768
Index: CRL-15768
Lithium Ion Polymer Battery with Short Cable - 3.7V 350mAh
A 5V powered fan with dimensions of 25 x 25 x 7 mm . It is designed to be mounted in MaticBox enclosures together with Raspberry Pi 4B. It has two leads terminated with 2-pin...
Index: DNG-19457
Index: DNG-19457
Two fans 5V with 50x25mm heat sink
Two fans operating at 5 V. The set has a 2-pin connector with a 2,54 mm grid. A heat sink with thermally conductive tape is mounted to the fans. Dimensions of fans with heat...
Index: LON-15059
Index: LON-15059
Fan 5V 50x50x10mm 2 wires - JST 2pin 2,54mm connector
Brushless fan powered by 5V, has been manufactured from plastic. Two 28cm long cables ended with a 2.54mm JST connector are responsible for the power supply. The rotational...
Index: DNG-18682
Index: DNG-18682
Fan 5V 30x30x10mm 2 wires - 2pin 2,54mm female connector
Brushless fan with 0,85 W and 5 V voltage. It is made of plastic. It has two 27 cm long cables ended with 2.54 mm two-pin connector . Fan rotation speed is 9582 rpm. Service...
Index: DNG-18679
Index: DNG-18679
Noctua NF-A4X10 FLX 3700-4500 RPM - 40x40x10 mm - 3pin fan
The NF-A4X10 FLX is an advanced premium fan manufactured by Noctua. The dimensions are 40 x 40 x 10 mm , and the rotational speed ranges from 3700 RPM to 4500 RPM. The...
Index: ACT-21653
Index: ACT-21653
Index: MOT-03870
5V fan 30x30x7mm - with 2.54mm BLS female connector
A 5V fan with dimensions of 30 x 30 x 7 mm . It has two leads terminated with a female connector. The length of the cable with the connector is about 8 cm . The kit includes...
Index: DNG-18676
Index: DNG-18676
5V fan 30x30x10mm - with JST 2.54mm connector
5 V mounting fan with dimensions 30 x 30 x 10 mm . Equipped with two 30 cm long cables ended with JST 2.54 mm connector. The fan is used, among others as a cooling element in...
Index: DNG-18678
Index: DNG-18678
Official Cooling Fan for NVIDIA Jetson Xavier NX - NX-FAN-PWM - Waveshare 21600
The official fan designed to cool the NVIDIA Jetson Xavier NX minicomputer. The fan is controlled by the PWM signal , what's more, the user can adjust the speed of...
Index: WSR-21613
Index: WSR-21613
Noctua NF-A4X20 FLX fan - 40x40x20mm - 3pin.
Advanced premium fan manufactured by Noctua. Its dimensions are 40 x 40 x 20 mm . The NF-A4X20 FLX has been made with the use of advanced aerodynamic technologies - it...
Index: ACT-21654
Index: ACT-21654
Fan Blower 12V 5,4W - 120x120x32mm -ball bearing
Blower powered by 12 V with current consumption up to 0.45 A. The device can be used to build a mini hovercraft or as a fan for cooling on a hot day. The outer diameter of the...
Index: MOD-08874
Index: MOD-08874
Fan with 12 V input voltage, current consumption 30 mA and dimensions 60 x 60 x 15 mm.
Index: MOD-11972
Index: MOD-11972
FORBOT - a powerful 40mm fan for the case for Raspberry Pi 3B/4B
Fan with 5 V input voltage, designed for housing for Raspberry Pi 4/3 from FORBOT. The upper flap and mounting elements are also included.
Index: FOR-14966
Index: FOR-14966
Fan blower 12V 3W - 75x75x30mm
Blower powered by 12 V with current consumption up to 0.25 A. The device can be used to build a mini hovercraft or as a fan for cooling on a hot day. The outer diameter of the...
Index: MOD-07369
Index: MOD-07369
Fan blower 12V 2,5W - 50x50x15mm
Blower powered by 12 V with current consumption up to 0.16 A. The device can be used to build a mini hovercraft or as a fan for cooling on a hot day. The outer diameter of the...
Index: MOD-07370
Index: MOD-07370
The fan with the input voltage of 5 V, current consumption of the 150 mA and dimensions of 30 x 30 x 10 mm.
Index: MOD-09872
Index: MOD-09872
Fan for Nvidia Jetson Nano - 40x40x10mm 5V - 3 wires with reverse protection - Waveshare 16990
Small size fan 40 x 40 x 10 mm with 5V supply voltage. It is compatible with Nvidia Jetson Nano minicomputer. It can also be used as a cooling element in Raspberry Pi or...
Index: WSR-19460
Index: WSR-19460
Controller L9110 with DC motor and fan
Fan made of plastic with a DC motor and the control unit of the direction of rotation based on the system L9110 with digital outputs. It has the ability to blow out the flame...
Index: MOD-08239
Index: MOD-08239
All-In-One from Waveshare is a 2-in-1 product that combines a heatsink and a fan. The element is made of high-quality aluminum , the fan has adjustable rotational speed...
Index: WSR-22141
Index: WSR-22141
Fans in electronic devices - what are their most important technological features?
Among the basic fan designs, the airflow direction concerning the fan axis is distinguished, in this respect, three groups are distinguished: axial, radial and diagonal. In cooling electronic devices, the first type of fans is most often used, in which the airstream flows in the direction of the axis. In this type of application, the fan, the characteristic element of which is a propeller-shaped impeller, is most often placed in a housing with an electric motor integrated with the impeller hub. Such a compact design, with mounting holes on the fan flange, allows it to be installed even in confined spaces. In the case of a compact design, however, there are sometimes spacers connecting the motor housing with the flange. They provide stability, but at the same time constitute an obstacle to the flowing air stream. During operation, the rotor blades sweep the struts, causing pressure surges in their surroundings. It is one of the main sources of noise generated by axial fans. Therefore, at the design stage of such devices, the shape and number of struts are carefully analyzed in terms of their impact on the airflow through the fan.
Other types of fans
Besides the fans typically used in the construction of electronic devices, I also distinguish separate fans that belong to the group of household electrical devices. we are all used to classic fans equipped with a round disc with a large propeller spinning behind it. These are classic fans - the most popular on the market. The cheaper models are mainly made of plastic, and the more expensive ones are made of metal. The performance of these devices can vary widely. It all depends on the engine power and the diameter of the propeller. On the other hand, desk fans are a variation of classic standing fans. Due to their smaller size, they are less efficient, but much more handy. However, one of the most modern constructions is column fans, which are usually at least 50 cm high and do not have a large propeller. Instead, the tower fan is equipped with several smaller propellers attached to a rotating column inside the housing.
The most important technical parameters of fans
One of the most important parameters of the fan is its power, which determines the efficiency of the device. Most devices have a power of 30W to 100W. It is best to choose a fan with a minimum power of 50W. High power also means the longer possibility of continuous operation. Adjusting the speed is also useful - there are days when we just need a gentle breeze, and there are also days when we want to use the maximum power of the fan. Therefore, the standing fan must have a speed regulation. The minimum is three ranges, but the more the better. Another important operating parameter that determines the fan performance is the propeller diameter. Even if the fan is equipped with a powerful motor and the propeller is small, its efficiency may turn out to be too low. A standing home windmill should have a propeller diameter of at least 30 cm. A practical feature is also the oscillation and adjustment of the gondola's angle of inclination - it is very useful when there are several people in the room. This allows the fan to change the direction of the airflow.