SUNON EF75251 B1-Q020-S99 projector air

Name: SUNON EF75251 B1-Q020-S99 projector air
Brand: SUNON
SKU: 922008857291
Availability: InStock
Rating: 5 (4 reviews)

$3.14

SKU: 922008857291 Brand: SUNON

Description
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Description

SUNON EF75251B1-Q020-S99 High-Static Pressure DC Blower. This component represents Original Engineering designed specifically for the rigorous thermal demands of high-lumen projection systems and compact industrial electronics. Utilizing SUNON’s proprietary Magnetic Levitation (MagLev) motor technology, this blower eliminates physical contact between the shaft and bearing, significantly reducing noise and extending service life compared to traditional sleeve bearings. This unit ensures precise Technical Compatibility with OEM projector chassis requiring concentrated airflow to cool high-density optical engines. Immediate availability supports critical repair operations, minimizing Lead Time for equipment restoration.

Technical Specifications:
Manufacturer: Sunon
Model Number: EF75251B1-Q020-S99
Component Type: DC Centrifugal Blower / Radial Fan
Frame Dimensions: 75mm x 75mm x 25mm
Rated Voltage: 12V DC
Power Consumption: 2.52W
Rated Current: 0.21A
Bearing System: MagLev (Vapo Bearing)
Rotational Speed: 3400 RPM ± 10%
Max Airflow: 10.6 CFM
Static Pressure: 0.38 Inch-H2O
Acoustic Noise: 34.0 dB(A)
Housing Material: Thermoplastic PBT (UL94V-0)
Impeller Material: Thermoplastic PBT (UL94V-0)
Operating Temperature: -10°C to +70°C
Termination: 3-Wire Lead
Signal Output: Frequency Generator (Tachometer)
Connector: Standard 3-Pin Header
Safety Certifications: UL, CUR, TUV
Condition: OEM Disassembled / Functionally Verified

Industrial Application:
Optimized for restricted airflow environments where high backpressure is present, such as multimedia projectors and server rack cooling zones. The centrifugal design draws air axially and expels it radially, generating sufficient pressure to force cooling air through dense heatsink fins and narrow exhaust ducts. This specific model is critical for dissipating heat from projector lamp modules and DMD/LCD processing chips to prevent thermal shutdown and component degradation.

SUNON EF75251 B1-Q020-S99 projector air

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Fans Maintenance and upkeep

1. The use environment should always be kept clean and tidy, the surface of the fan should be kept clean, there should be no sundries in the inlet and outlet air outlets, and the dust and other sundries in the fan and pipes should be cleaned regularly;

2. The fan can only operate under the condition that it is completely normal, and at the same time, it is necessary to ensure that the capacity of the power supply facilities is sufficient and the voltage is stable.

3. During the operation of the fan, if it is found that the fan has abnormal sound, the motor is seriously heated, the shell is live, the switch trips, and cannot be started, it should be stopped immediately for inspection. In order to ensure safety, maintenance is not allowed during the operation of the fan, and a test run should be carried out for about five minutes after the overhaul to confirm that there is no abnormal phenomenon before starting the operation;

4. The fan should be stored in a dry environment to avoid moisture on the motor. When the fan is stored in the open air, there should be defensive measures. In the process of storage and handling, the fan should be prevented from bumping to avoid damage to the fan.

FAQ

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