DC Axial Fan 4015

Product Attributes

• Brand:D-FAN

• Models:4015

• Material:Thermal Plastic UL 94V-0

• Size:40x40x15mm

• Lead Wires:UL Type RED Wire Positive(+) Black Wire Negative(-)

• Insulation Resistance:10MΩ Or Over With a DC250V Megger

• Dielectric Withstand Voltage:AC500V 1S

• Allowable Ambient Temperature Range:-10℃~+70℃(Operating) -40℃~+70℃(Storage)

Product Details

Voltage and Current Ratings

Fans typically operate at 5V, 12V, or 24V DC, and the voltage requirement depends on the system's power supply. Differentiating fans by voltage ensures safe integration into your device. Additionally, current consumption can indicate energy efficiency, which is essential for battery-powered or eco-conscious applications.

Bearing Types

One of the most important internal differences is the bearing system. Common types include:

Sleeve bearing – Economical but limited in lifespan.

Ball bearing – Longer lifespan, suitable for high-temperature environments.

Hydraulic/dynamic bearing – Low noise, long service life, and better for vertical installation.

Choosing the right bearing improves reliability and overall performance in specific applications.

Airflow and Static Pressure

While many fans may appear similar, their airflow (CFM) and static pressure (mmH₂O or Pa) ratings vary significantly. High static pressure fans are ideal for use in dense systems or restricted airflow paths. Comparing technical specifications is key to achieving effective heat dissipation.

Noise Levels (dBA)

Some applications require ultra-low noise operation, such as in medical equipment or multimedia devices. When comparing fans, check for the noise level at maximum RPM. This is especially important in environments where noise pollution is a concern.

Ingress Protection (IP Ratings)

IP ratings such as IP56 or IP67 indicate protection against dust and water, which makes a major difference in outdoor or industrial use. If you're working in humid, dusty, or rugged environments, an IP-rated DC Axial Fan offers extra reliability.

Smart Control Functions

Advanced DC fans support intelligent control features such as:

PWM (Pulse Width Modulation) – Allows speed control based on temperature or system demand.

FG (Frequency Generator) – Feedback signal for RPM monitoring.

RD (Rotation Detection) – High/low signal for failure alert.

TP (Thermistor Control) – Adjusts fan speed according to temperature.

These features add value by enhancing system automation and reliability.

Material and Flame Rating

High-performance fans are built using UL 94V-0 flame-retardant plastic for safety in critical applications. The quality of the fan frame, impeller, and motor insulation materials all impact durability, resistance to environmental stress, and long-term performance.

OEM/ODM services

Customizability allows the fan to be optimized for unique performance or branding needs.

Understanding these technical and application-based distinctions allows you to compare DC Axial Fans confidently. When sourcing from a reputable DC Axial Fan manufacturer, always evaluate size, power rating, airflow, noise, IP rating, smart features, and certifications to ensure the best fit for your system.

If you need assistance choosing or customizing the right fan, our expert team at Xingdong, a leading DC Axial Fan Factory, is ready to help.