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.
Gravity - alcohol sensor 0-5ppm - I2C / UART - DFRobot SEN0376
Index: DFR-19016
- Reduced price
- Promotion
Official mouse for Raspberry Pi Model 4B/3B+/3B/2B - black-gray
Index: RPI-15304
- Reduced price
- Promotion
- Reduced price
- Promotion
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
Cover for a 30 x 30 mm fan. Mounting holes in 25 mm spacing. Compatible with fan for Raspberry Pi
Index: LON-15057
Index: LON-15057
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
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
Index: MOT-03870
Esperanza EHF101E Daphne hand fan with Powerbank 5W - 22cm
Foldable Esperanza fan with a wing diameter of 10 cm , has two airflow speeds that can be adjusted at the touch of a button. Very useful during hot days. The built-in battery...
Index: ESP-16986
Index: ESP-16986
- On sale!
- Promotion
Fan Shim for Raspberry Pi 4B/3B+/3B/2B - Pimoroni PIM461
The fan with Fan Shim stand for Raspberry PI allows direct cooling of the minicomputer without additional fixtures and housings. The base is equipped with an RGB LED which,...
Index: PIM-14882
Index: PIM-14882
Argon Mini Fan for Raspberry Pi 4B with switch and heat sink
Mini Fan is a fan module designed for Raspberry Pi 4B . The product has dimensions of 45 x 45 x 15 mm and uses only 12 GPIO pins in the Raspberry Pi. This allows you to use...
Index: ARG-17275
Index: ARG-17275
Fan 5V 30x30x10mm - for case to Raspberry Pi - blue light
Brushless fan in transparent colour, made of ABS material, supply voltage 5 V. The fan is fully compatible with Raspberry Pi 4B. It ensures proper cooling of the Raspberry Pi....
Index: LON-15721
Index: LON-15721
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
The fan is powered from the USB port. It provides coolness on hot days.
Index: MOT-11678
Index: MOT-11678
Fan 12V 80x80x10,8mm - 2 wires
Fan size 80 x 80 x 10.8 mm . It is powered by 12 V , draws up to 0.18 A current. Its rotational speed is 1600 rpm , provides an airflow of 11.2 CFM, operates at a volume...
Index: ODR-17196
Index: ODR-17196
The fan with the input voltage of 12 V, current consumption of 0.2 A and size of 60 x 60 x 15 mm.
Index: MOT-03874
Index: MOT-03874
Fan with 12 V input voltage, current consumption 30 mA and dimensions 60 x 60 x 15 mm.
Index: MOD-11972
Index: MOD-11972
Notebook cooling pad Tracer Icestorm 17'' - TRASTA46338
Cooling stand in a modern design and Tracer black colour. Designed for notebook and laptop users. It has one 12.5 cm, quiet fan, which is illuminated in blue. It has a light...
Index: MEB-14714
Index: MEB-14714
DFRobot Gravity - DC motor + propeller module
Module with DC motor and built-in transistor, it does not require an additional driver. Control is via PWM signal. It has a connector adapted to DFRobot IO Expansion Shield.
Index: DFR-05965
Index: DFR-05965
Index: MOT-03869
The fan with the input voltage of 12 V, current consumption of 130 mA and dimensions of 50 x 50 x 15 mm.
Index: MOT-03872
Index: MOT-03872
Fan 12V 120x120x25mm Molex - green backlight
Fan with 12 V input voltage, current consumption 160 mA and dimensions 120 x 120 x 25 mm. The product is additionally equipped with a green backlight. The power...
Index: MOT-05612
Index: MOT-05612
Fan 12V 120x120x25mm Molex - blue backlight
Fan with 12 V input voltage, current consumption 160 mA and dimensions 120 x 120 x 25 mm. It has a blue backlight.
Index: MOT-05613
Index: MOT-05613
Fan cooler Akyga AW-12C-BL 12V 120x120x25mm Molex - blue
The fan with the input voltage of 12 V, current consumption of 100 mA and dimensions of 120 x 120 x 25 mm. It has a blue backlight.
Index: RCO-13496
Index: RCO-13496
Fan cooler Akyga AW-12C-BR 12V 120x120x25mm Molex - red
The fan with the input voltage of 12 V, current consumption of 100 mA and dimensions of 120 x 120 x 25 mm. It has red illumination.
Index: RCO-13497
Index: RCO-13497
Notebook cooling pad Tracer Tornado 17'' - TRASTA44434
Tracer cooling pad for notebooks. It has two large 14-cm long silent fans built in, additionally highlighted in blue. It is also suitable for laptops from 10" to 17". It is...
Index: MEB-14712
Index: MEB-14712
Fan 5V 30x30x10 mm for Raspberry Pi case
A small 5-volt fan for the Raspberry Pi chassis. It is equipped with a two-pin connector to connect with GPIO Raspberry Pi. It has a low noise level. The fan comes with a...
Index: LON-15056
Index: LON-15056
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.