

Designed for telecom cabinets, base stations, and network equipment, SUNON EEC0251B1-000U-A99 is a 12 VDC DC axial fan in a 120 × 120 × 25 mm frame. Up to 183.8 m³/h is its most prominent listed performance figure. Use the documented selection parameters when planning wiring review. Confirm environmental protection for the ordered version.
| Rated Voltage(V) | 12 |
|---|---|
| Size(mm) | 120x120x25 |
| Max.Air Flow(m³/h) | 183.8 |
| Max.Pressure(Pa) | 69.7 |
| Input Power(W) | 5.4 |
| Speed(rpm) | 3100 |
| Noise(db) | 44.5 |
SUNON EEC0251B1-000U-A99 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. System resistance, grille geometry and cable clearance should be reviewed together to maintain predictable air delivery.
Before adopting EEC0251B1-000U-A99, engineers should evaluate mounting rigidity. Carry out power-budget review before ordering 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.
Yes. The worksheet lists up to 69.7 Pa; compare it with the system curve.
The worksheet lists 5.4 W input. Check supply capacity and operating conditions before commissioning.
It is listed for telecom cabinets, base stations, and network equipment. Check dimensions, airflow, pressure, and the installation environment against the actual equipment.
Confirm any missing bearing, connector, control, IP rating, life, certification, and performance-curve details for the complete part number.
Match voltage, dimensions, mounting, airflow direction, airflow, pressure, connector, control signal, and protection before substitution.

Within telecom cabinets, base stations, and network equipment, SUNON EEC0252B1-000U-A99 serves as a 120 × 120 × 25 mm DC axial fan operating at 24 VDC. Its 3100 rpm rating defines a lower-speed operating point. Base replacement evaluation on the stated supply requirement. Check the full suffix before confirming connector details.
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The EEC0381B2-000U-A99 is SUNON's 12 VDC, 120 × 120 × 38 mm DC blower option for telecom cabinets, base stations, and network equipment. Up to 197.1 m³/h is its most prominent listed performance figure. For noise-control planning, start with the supplied mounting size. Confirm environmental protection for the ordered version.
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Positioned for telecom cabinets, base stations, and network equipment, SUNON EEC0381B1-000U-A99 is a 12 VDC DC blower in a 120 × 120 × 38 mm frame. Up to 234.5 m³/h is its most prominent listed performance figure. Review its operating point during noise-control planning. Confirm environmental protection for the ordered version.
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