

For thermal management in servers and data-center electronics, the VF40281BX-Q09U-S9H provides a 12 VDC DC axial fan configuration measuring 40 × 40 × 28 mm. 28600 rpm is the model's most distinctive operating parameter. Base application screening on the stated electrical load. Validate approvals and protection at complete-part-number level.
| Rated Voltage(V) | 12 |
|---|---|
| Size(mm) | 40x40x28 |
| Max.Air Flow(m³/h) | 32.5 |
| Max.Pressure(Pa) | 4.17 |
| Input Power(W) | 17.04 |
| Speed(rpm) | 28600 |
| Noise(db) | 63.8 |
SUNON VF40281BX-Q09U-S9H is a DC brushless axial fan for industrial equipment. It establishes forced airflow where passive cooling cannot adequately protect heat-producing assemblies.
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.
Before adopting VF40281BX-Q09U-S9H, engineers should evaluate mounting rigidity. Carry out acoustic evaluation for service documentation so the chosen fan can be released with clear installation and sourcing requirements. Use a firm support surface to limit movement at the fan frame.
The listed rating is 12 VDC. Verify polarity or mains frequency, wiring, and protection before commissioning.
The supplied product-line reference discusses long-life cooling, but continuous-duty limits for this full suffix must be verified from its datasheet and operating conditions.
The exact bearing option is not confirmed by the row-level data. Check the complete suffix in the current SUNON specification.
The worksheet lists 17.04 W input. Check supply capacity and operating conditions before commissioning.
Assess reliability from the exact bearing, temperature, protection, and life data. The supplied series note alone does not confirm every suffix-specific option.

SUNON VF92381BX-D020-S9H combines a 92 × 92 × 38 mm DC blower platform with a 12 VDC rating for servers and data-center electronics. 4.48 Pa maximum pressure is the standout documented duty-point value. Treat the cooling output as a primary input to system commissioning. Verify bearing and signal options in the exact datasheet.
Read More
VF80864BX-1Q010-S9H serves servers and data-center electronics as a 80 × 80 × 86 mm DC blower rated at 54 VDC. The supplied data list 87.3 dB, an important acoustic selection parameter. Use the documented electrical load when planning system commissioning. Verify bearing and signal options in the exact datasheet.
Read More
SUNON VF80864BX-Q023-S9H combines a 80 × 80 × 86 mm DC blower platform with a 54 VDC rating for servers and data-center electronics. The supplied data list 81.9 dB, an important acoustic selection parameter. Review its speed benchmark during system commissioning. Verify bearing and signal options in the exact datasheet.
Read More
The VF80804BX-1Q040-S9H is SUNON's 54 VDC, 80 × 80 × 80 mm DC blower option for servers and data-center electronics. The supplied data list 84.6 dB, an important acoustic selection parameter. During technical purchasing, compare the model's selection parameters. Request the exact performance curve for final engineering signoff.
Read More
For servers and data-center electronics, VF80801BX-Q031-S9H combines 12 VDC operation with a 80 × 80 × 80 mm DC blower design. The supplied data list 80 dB, an important acoustic selection parameter. The recorded rated dataset should guide technical purchasing. Request the exact performance curve for final engineering signoff.
Read More
Applied in servers and data-center electronics, SUNON VF80761BX-Q040-S9H is a 12 VDC DC blower in a 80 × 80 × 76 mm frame. The supplied data list 78.8 dB, an important acoustic selection parameter. Use the documented ventilation capacity when planning technical purchasing. Request the exact performance curve for final engineering signoff.
Read More