Description
The Sunon EF50201B2-Q020-S99 is a high-performance 12 V industrial centrifugal blower with dimensions of 50 x 50 x 20 mm, purpose-built to deliver elite-level thermal cooling in high-resistance airflow paths. This unit features a heavy-duty brushless DC motor capable of sustaining a 1.83 W power input to drive its specialized multi-blade turbine impeller at a consistent 6000 RPM. Engineered specifically for concentrated air displacement in projection systems and medical devices, it utilizes a 20 mm thick blower housing to generate high static pressure, forcing air through dense optical engines and heatsink fins. The mechanical design relies on precision high-durability ball bearings and a fiberglass-reinforced PBT housing to ensure 70,000 hours of continuous operation at a 40 °C ambient temperature. Featuring a robust 4-wire electrical interface with dedicated PWM speed control and Tachometer (FG) output, this blower is a critical component for high-brightness projector thermal management, medical equipment, and compact electronics where directional cooling and intelligent thermal regulation are mandatory.
EF50201B2-Q020-S99 Fan Parameters
Manufacturer: Sunon
Model Number: EF50201B2-Q020-S99
Series: EF Blower Series
Industry Size Code: 5020 Blower
Type: DC Centrifugal Blower (Turbine)
Bearing Type: Ball Bearing
Nominal Voltage: 12 VDC
Voltage Range: 6 – 13.8 VDC
Starting Voltage: 6 VDC
Dimensions: 50 x 50 x 20 mm
Weight: 33 g
[Electrical Data]
Input Power: 1.83 W
Nominal Current: 0.152 A
Max. Current: 0.20 A (Peak startup current)
Nominal Speed: 6000 RPM (Tolerance ±15%)
Motor Design: Brushless DC Motor
Signal Output: FG (Frequency Generator / Tachometer)
Speed Control: PWM (Pulse Width Modulation)
Motor Protection: Auto Restart, Polarity Protection
Insulation Class: Class A
Insulation Resistance: >10M ohm at 500 VDC
Dielectric Strength: 500 VAC for 1 minute
Termination: 4-Lead wires (UL1007, AWG 26, Red/Black/Yellow/Blue)
[Performance & Acoustics]
Max. Air Flow: 6.2 CFM (10.5 m³/h / 0.18 m³/min)
Max. Static Pressure: 26.41 mmH₂O (259.0 Pa / 1.04 inH₂O)
Sound Pressure Level: 48 dB(A) (Measured at 1 m)
Number of Blades: Multi-blade Turbine
Direction of Rotation: Counter-clockwise (Viewed toward air inlet)
Airflow Direction: Radial (Intake from top, exhaust from side outlet)
[Materials & Construction]
Frame Material: Plastic (PBT reinforced with 30% glass fiber, UL94V-0)
Impeller Material: Plastic (PBT reinforced with 15% glass fiber, UL94V-0)
Installation Position: Any
Degree of Protection: IP20
[Reliability & Safety Standards]
Min. Ambient Temperature: -10 °C
Max. Ambient Temperature: 70 °C
Storage Temperature: -40 °C – 70 °C
Life Expectancy (L10): 70,000 hours at 40 °C
Standard Compliance: UL, TUV, RoHS
Approval Agency: UL, CUL, TUV, CE
Application
The Sunon EF50201B2-Q020-S99 axial fan is used in high-brightness cinema projectors, medical ventilation units, server-grade compact power modules, 3D printer hot-end cooling, and localized high-density industrial spot cooling.
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