The Premier Solution for Thermal Management: The 120x38mm High-Speed Brushless DC Fan

Within the world of high-performance electronics and industrial machinery, dependable thermal management serves as the foundation for stability, longevity, and optimal output. Heat is an unavoidable byproduct of electrical power, and its proficient removal is essential for preventing performance throttling, early component degradation, and critical system shutdowns. In this context, a superior air-moving component is indispensable.

Introducing a titan of thermal performance: the 120x38mm DC fan, an engineering marvel crafted for the most rigorous applications where compromise is not a consideration. Operating at an impressive velocity of approximately 5100 RPM, this DC fan is engineered to move a substantial quantity of air with force, ensuring your vital components remain cool under the most intense operational stress.

Unmatched Airflow and Static Pressure

The fundamental purpose of any fan lies in its ability to move air, and in this area, the 120mm DC fan operates in a league of its own. Featuring a carefully engineered seven-blade impeller, it produces an impressive maximum airflow reaching around 242 cubic feet per minute (CFM). This volume of airflow can generate significant turbulence inside an enclosure, guaranteeing that no pockets of stagnant, hot air remain. It forcefully extracts heat from sensitive parts such as CPUs, GPUs, FPGAs, and high-drain voltage regulators, which fosters a cool and stable operating environment.

However, high airflow volume is only part of the equation. In many practical scenarios, from crowded 1U servers to complex industrial control panels, airflow encounters resistance from filters, heatsinks, and densely packed parts. This opposition is known as impedance, and overcoming it demands substantial static pressure.

This DC fan excels in this domain as well, producing an outstanding static pressure of up to 1.18 inchH2O. This strong pushing force ensures that cooling air effectively penetrates even the most restricted areas, delivering direct and efficient cooling precisely where it is most needed. The performance (P&Q) curve, which illustrates airflow in relation to static pressure, highlights the DC fan's capacity to sustain significant airflow even as resistance mounts, which is a testament to its robust and optimized engineering.

Built for Durability and Reliability

A DC fan is frequently one of the few mechanical components within an otherwise solid-state assembly, making its durability a paramount concern. This 120x38mm DC fan is designed from the ground up for continuous, long-duration operation. At its heart lies a high-grade dual ball bearing system. In contrast to lesser sleeve bearings susceptible to wear and lubricant breakdown, dual ball bearings provide a much longer operational lifespan, reduced friction, and the flexibility for mounting in any orientation—vertical, horizontal, or angled—without compromising performance or longevity. This ensures consistent and dependable cooling for years.

The DC fan's physical construction is equally durable. The frame and impeller are both made from a high-quality thermal plastic that conforms to the UL 94V-0 flammability standard. This certification signifies that the material is self-extinguishing and resistant to ignition, which is a critical safety feature for any electronic assembly, especially in commercial or industrial environments.

Furthermore, the fan incorporates essential motor protection mechanisms. Integrated impedance protection shields the motor from harm if the blades are obstructed, while reverse polarity protection averts catastrophic failure from incorrect wiring, adding another level of security during installation and service.

Adaptability for a Broad Spectrum of Applications

Acknowledging that every cooling requirement is unique, this DC fan is engineered with inherent versatility. It is offered with multiple DC voltage options, such as 12V, 24V, and 48V, making it easily integrated with the wide variety of power systems utilized in consumer electronics, telecommunications equipment, and industrial automation.

In addition to its standard configuration, the DC fan can be outfitted with an array of advanced functions to facilitate intelligent and adaptive thermal regulation:

• PWM Speed Control: Pulse Width Modulation functionality enables precise, dynamic management of the fan’s speed. By connecting it to a motherboard or a dedicated controller, a system can automatically modulate the DC fan's RPM based on real-time temperature fluctuations. This creates an ideal balance between cooling effectiveness and acoustics, allowing for quiet operation during low-load periods and ramping up to maximum power only when necessary.

• Tachometer (FG) and Alarm (RD) Signals: For mission-critical applications where a cooling failure is unacceptable, the Frequency Generator (FG) and Rotation Detector (RD) signals provide essential feedback. The FG signal provides a pulse train that corresponds to the fan's rotational speed, permitting the system to monitor its operational status. The RD signal functions as an alert, notifying the system if the fan's blades lock up or fail, which enables prompt corrective measures.

These capabilities establish the 120x38mm DC fan as the ideal selection for an extensive array of uses, such as:

• Servers and Data Centers: Cooling high-density, rack-mounted servers and network hardware.

• Telecommunications: Upholding the reliability of base stations, routers, and other infrastructure.

• Industrial Automation: Cooling PLCs, motor drives, and power supply units inside control cabinets.

• High-Power Electronics: Ventilating large welding machines, plasma cutters, and commercial-grade LED lighting fixtures.

• Advanced Computing: Delivering extreme cooling for high-performance gaming computers and professional workstations.

To conclude, the 120x38mm DC fan represents more than just a part; it is a safeguard for the stability and lifespan of your valuable equipment. By offering an uncompromising mix of raw cooling capability, exceptional durability, and intelligent functions, it provides the peace of mind that comes from knowing your thermal management is entrusted to the very best. When your system demands powerful, dependable, and consistent cooling, this fan presents the ultimate solution.