Miniature fans for limited designed spaces
The miniaturisation of electronic components is advancing continuously. Components are becoming smaller, printed circuit boards are being populated more densely, and housings are becoming more compact. At the same time, power density is increasing, and more functions have to be accommodated in ever less space. This results in a higher thermal load. If the heat generated is not reliably dissipated, heat build-up can occur inside the device. The consequences range from reduced performance to malfunctions or even complete failure.
A miniature fan can provide a targeted solution here. It ensures a continuous flow of air within the housing, directs cooler air towards the components generating the heat, and carries the heated air away from the area. Even a small airflow can significantly improve the temperature distribution within a compact system.
New standards in efficiency and variability
The SEPA EUROPE range includes miniature fans in various sizes. The smallest models start at just 15 × 15 × 5 mm. Larger variants within the miniature range measure up to 25 × 25 × 15 mm. Depending on their size, design and technical specifications, the miniature fans achieve an air flow rate of between 0.6 m³/h and 4.1 m³/h. This means a suitable solution can be selected for any thermal requirement.
Our “smallest” model, the MF15B axial fan, measures 15 × 15 × 5 mm and weighs only approx. 1 g. This is because the housing and impeller are manufactured from vibration-damping GRP. As a result, the mini fan can withstand even adverse environmental conditions. The operating temperature range is between -10°C and 80°C.
Quiet & economical
A key development objective is energy efficiency. That is why SEPA EUROPE’s miniature fans are designed for energy-efficient operation.
However, noise levels are also an important factor when selecting a fan. Our miniature fans are designed to operate as quietly as possible. The noise level of these little powerhouses is very low and never exceeds 20 dB(A).
High life expectancy
In many applications, a fan operates continuously over a long period of time. A long service life reduces the risk of unplanned failures and minimises maintenance requirements. At the same time, it contributes to the operational reliability of the entire device. The service life of our miniature fans, measured at 40°C, is an outstanding 350.000 hours (MTBF).
Miniature fans with MagFix® sleeve bearing
MagFix® stands for the magnetic fixation (positioning) of the fan propeller and rotor in sleeve bearing fans.
The MagFix® bearing by SEPA EUROPE comprises a sleeve bearing for the radial positioning and a so-called thrust bearing for the axial positioning at the top of the rotor shaft. In simple terms, due to an offset of the coils to the magnet or due to a magnetic clamping plate, a force in the axial direction is used to fix the position in the thrust bearing. Hence the bearing shoulders remain free and the oil remains in place.
The result: longer service life, low noise level, higher operating temperature up to 85°C!
Miniature fan of radial construction
Whether in industry, the home or in vehicles, the importance of air quality measurements is constantly increasing. Manufacturers should therefore equip themselves with the optimal sensor fan. To this end, SEPA EUROPE offers the compact HY20A radial fan, measuring 20 x 20 x 6.3 mm. The radial fan has a single-sided inlet and delivers a flow rate of up to 2 l/min. With a sound pressure level of 5 dB(A) at a distance of 1 m, it is inaudibly quiet.
The HY20A is also of interest for cooling hotspots in embedded applications. This small blower allows optimal use of limited installation space.
RaAxial Miniature fans
The new RaAxial mini fan by SEPA EUROPE is the latest release on the fan market and a true innovation! The question is whether axial fan or radial fan? And the answer is: both! This all-rounder has a dimension of 17x17x4.5 mm and is the perfect solution for compact embedded applications.
The RaAxial fan from SEPA EUROPE features a specialised design that combines the advantages of an axial fan with those of a radial airflow. Air is drawn in axially and expelled laterally through the heat sink. This results in a particularly compact and effective cooling solution for confined spaces.
RaAxial fan MF15A
The MF15A05 DC axial fan is a particularly compact cooling solution for applications with very limited installation space. Measuring just 15 × 15 × 8 mm, it is ideal when reliable active cooling is required in the smallest of spaces. The fan is powered by 5 V and achieves a maximum airflow of 0.6 m³/h.
It impresses with its very quiet operation, with a typical noise level of just 8 dB(A) at a distance of 1 m. The housing is made of PBT with 30 per cent glass fibre content, providing a robust basis for use in demanding electronic applications.
RaAxial fan MF17B
This versatile unit measures 17 x 17 x 4.5 mm and is a high-performance cooling solution for applications with very limited installation space. The MF17B fan is powered by 5 V and achieves a maximum airflow of 1.1 m³/h. At the same time, it operates very quietly, with a typical noise level of just 10 dB(A) at a distance of 1 m. This makes the MF17B05 ideal for applications such as embedded systems, where both a compact design and quiet operation are important.
Active cooler HZ25B05
An active cooler is a compact cooling solution that combines a heat sink with a fan. The heat sink absorbs heat directly from the component, for example from a processor, power electronics or another electronic component. The integrated fan then directs the heated air away and ensures that fresh, cooler air can flow in. This allows heat to be dissipated much more efficiently, particularly where space is limited, high power dissipation occurs or natural air circulation within the device is insufficient.
For applications in the field of embedded computing, particularly for single-board computers, the ultra-slim active chip cooler HZ25B05 is a compelling choice. Measuring 25 x 25 x 6.5 mm, it fits into even the tightest spaces and provides highly effective heat dissipation. One of the advantages of this ultra-slim cooler is not only its size, but also its exceptionally low noise level.rs.
Active cooler HXB25B
The HXB25B05 chip cooler is a compact active cooling solution. Measuring 25 × 25 × 15 mm, it combines an aluminium heat sink with active airflow, making it ideal for applications where heat needs to be dissipated reliably whilst saving space. The active cooler is powered by 5 V and operates at a typical noise level of 19 dB(A) at a distance of 1 m, making it pleasantly quiet. The integrated ball bearing ensures high operational reliability and a long service life.
Thanks to its wide temperature range of −40 °C to +80 °C, the HXB25B05-002 is also suitable for demanding operating conditions.