Performance
P-Q curve
Select a verified fan to view its P-Q curve.
Performance curve from the corresponding catalogue size series. Final application validation is available from MEGA Tech engineering.
Engineering tools
DC Cooling Fan Selection Tool
Compare catalogue DC cooling fans by airflow, static pressure, speed, noise and power before requesting engineering validation or a custom sample.
Filter by electrical requirements, airflow, pressure and allowable noise to compare verified models.- ✦Catalogue backedSource-page traceability
- ◈Performance dataAirflow and pressure
- ↗Wide range15 mm to 254 mm
- ◌Engineering supportCustom options available
Select your requirements
Recommendations use only catalogue rows that pass data validation.
Recommended fans
| Model | Size (mm) | Rated Voltage | Operating Voltage | Airflow (CFM) | Static pressure (mmH₂O) | Noise (dB-A) | Speed (RPM) | Power (W) |
|---|
Click any row to view verified dimensions, P-Q curve and available options.
Validation method
A shortlist is the start of the engineering review
The tool screens catalogue records by the requirements entered above. Before approval, compare the candidate at the airflow and static pressure created by the complete equipment: filter, grille, heat sink, duct, cable path and outlet. Record the fan-terminal voltage, command, speed or feedback, airflow, pressure, power and hottest component temperature in the same test record.
If the result is outside the target, classify the cause before changing the model. A low speed can indicate supply or control margin; normal speed with low airflow can indicate restriction, leakage or bypass; a hot component can indicate distribution or heat-load error. Send the operating point, envelope, interface, environment, noise point and quantity to MEGA Tech for a sample review.
Does a tool match prove the fan will work in my equipment?
No. It is a screening result based on catalogue fields. Final selection requires installed airflow and pressure validation with the released air path and control interface.
What should I send after I find a candidate?
Send the required airflow at pressure, voltage and tolerance, control and feedback, connector, frame and thickness, filter or grille state, ambient, noise point, quantity and the acceptance condition.