

The PF40561BX-0000-S99 is SUNON's 12 VDC, 40 × 40 × 56 mm DC axial fan option for servers and data-center electronics. 3.6 Pa maximum pressure is the standout documented duty-point value. Base application screening on the stated power demand. Validate approvals and protection at complete-part-number level.
| Rated Voltage(V) | 12 |
|---|---|
| Size(mm) | 40x40x56 |
| Max.Air Flow(m³/h) | 31.7 |
| Max.Pressure(Pa) | 3.6 |
| Input Power(W) | 16.68 |
| Speed(rpm) | 21500/18000 |
| Noise(db) | 65.9 |
SUNON PF40561BX-0000-S99 supports industrial equipment with DC brushless axial fan airflow. It is intended for installations where predictable air exchange is central to equipment stability.
The SUNON product series carries RoHS compliance and recognized safety approvals; buyers should confirm the approval marks for this exact suffix and target market. The enclosure should direct air across the heat source because bypass flow can reduce cooling even when the fan runs normally.
Design approval for PF40561BX-0000-S99 should cover cable routing together with acoustic evaluation for service documentation. This creates a practical link between thermal validation, purchasing documentation and future servicing. Measure sound after mounting because the enclosure changes transmission.
The worksheet lists 16.68 W input. Check supply capacity and operating conditions before commissioning.
The workbook marks the product as RoHS compliant. Confirm UL, TUV, VDE, or other project-specific approvals for the exact suffix.
Confirm any missing bearing, connector, control, IP rating, life, certification, and performance-curve details for the complete part number.
Speed-control capability is not stated for this complete part number. Confirm the signal and controller requirements before use.
Its documented 12 VDC rating and 3.6 pa maximum pressure is the standout documented duty-point value. allow comparison with the required duty point without assuming unlisted options.
The listed rating is 12 VDC. Verify polarity or mains frequency, wiring, and protection before commissioning.

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