Unveiling a Compact Cooling Powerhouse: The 40x40x15mm 24V DC Fan

In the dynamic realm of electronic devices, effective thermal regulation is not merely a recommendation; it has become a fundamental necessity for ensuring performance, dependability, and longevity. As components become increasingly powerful and compact, the need for efficient and reliable cooling solutions is more critical than ever. Addressing this essential requirement is the high-performance 40x40x15mm brushless DC fan. 

Meticulously designed for applications where space is a luxury but airflow cannot be compromised, this fan represents an ideal blend of compact engineering, resilient construction, and remarkable cooling power. Operating on a 24V DC system and equipped with a durable ball bearing mechanism, it is built to provide consistent, long-term service in a diverse range of demanding conditions.

Precision Engineering and Seamless Integration

The design of this fan starts with its precise and conventional measurements. The square frame is 40mm by 40mm, a widely used form factor that guarantees compatibility with a multitude of devices, from consumer gadgets to industrial machinery. Its slender 15mm profile allows for installation in low-profile enclosures and densely packed electronic assemblies where larger, more cumbersome fans would be impractical. The mounting system is crafted for universal and straightforward integration, with four holes strategically placed at a 32.0mm center-to-center spacing. This standard configuration enables system designers and hobbyists to easily mount the fan onto heatsinks, chassis panels, and custom brackets.

Uncompromising Performance Metrics

While its size may be compact, its performance capabilities are anything but. This fan is engineered to deliver a potent cooling impact. Operating at its nominal voltage of 24V DC, the motor spins the seven-bladed impeller at a remarkable 10,000 RPM. This high rotational velocity is the driving force behind its exceptional airflow and static pressure ratings.

• Maximum Airflow: The fan can displace a substantial 13.8 Cubic Feet per Minute (CFM) of air. This metric signifies the sheer volume of air it can move in an open environment, making it highly effective at expelling hot, stagnant air and replacing it with cooler, ambient air.

• Maximum Static Pressure: In many real-world scenarios, airflow is impeded by obstacles like heatsink fins or dense component layouts. This fan generates a maximum static pressure of 12.30 mmH₂O, which represents its powerful capacity to push air through these obstructions and ensure that cooling airflow reaches the vital components that need it most.

Despite this high level of performance, the fan is remarkably efficient, drawing a mere 0.10 A of current for a total input power of just 2.40 Watts.

Built for Durability and an Extended Operational Life

Dependability is a cornerstone of this fan's design, beginning with its superior dual ball bearing system. Compared to more common sleeve bearings, ball bearings offer significant advantages that directly translate to a longer lifespan and more consistent performance. They are less susceptible to wear, can function at higher temperatures without lubricant degradation, and are not dependent on mounting orientation. This allows the fan to be installed horizontally, vertically, or at any angle without affecting its durability.

The fan's construction materials were chosen for safety and resilience. Both the frame and impeller are made from a high-quality thermal plastic that meets the UL 94V-0 flammability standard. This is the highest rating for plastics, indicating the material will self-extinguish quickly and will not produce flaming drips, providing essential peace of mind. Further enhancing its reliability are several integrated motor protections:

• Impedance Protection: This prevents the motor from burning out if the blades become blocked.

• Reverse Polarity Protection: This critical safety circuit guards against accidental miswiring.

• Auto Restart: If the blade is locked, the fan will automatically cut the current and then attempt to restart periodically, ensuring it resumes operation once the obstruction is cleared.

The fan is also built to withstand a wide range of environmental conditions, rated for operation in temperatures from -10°C to 70°C.

The Ideal Cooling Solution for a Multitude of Applications

With its combination of a small footprint, potent airflow, high static pressure, and industrial-grade reliability, this 40x40x15mm fan is a perfect choice for an extensive list of applications, including:

• 3D Printers: Ideal for cooling hotends, controller boards, or stepper motors.

• Networking and IT: Cooling switches, routers, and small form-factor servers.

• Embedded Systems: Providing active cooling for single-board computers.

• LED Lighting: Dissipating heat from high-intensity LED drivers.

• DIY Electronics: A versatile fan for any project requiring dependable and efficient cooling.

In summary, this 24V brushless DC fan is more than just a component; it is an assurance of stability. It delivers the performance needed to protect delicate electronics, the reliability required by continuous operation, and the compact form factor demanded by modern design.