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DC Brushless Fan
Mechanical Characteristic
Motor Design 3 phases, 4-poles Brushless DC motor
Bearing System Precision ball bearing system
Dimensions 40mm × 40mm × 28mm
Materials of Frame Thermoplastic PBT
Materials of Fan Blade Thermoplastic PBT
Direction Of Rotation Counter-clockwise viewed from front of fan blade
Mounting Holes Diameter 3.5mm in 8 holes
Weight 35g
Specications:
Electric Characteristic
Rated Voltage 12V DC
Rated Current 520mA / Max. 624mA
Rated Power Consumption 6.24 Watts / Max. 7.49 Watts
Operating Voltage Range 8V DC to 13.8V DC
Starting Voltage 8V DC (25°C power on/off)
Operating Temperature Range -10°C to +70°C
Storage Temperature Range -40°C to +70°C
Performance Characteristic
Rated Speed 19000 RPM ± 10% at rated voltage
Airow 25.6CFM
Static Pressure 1.45″-H2O
Acoustic Noise 58.5 dB(A)
Insulation Resistance
Plastic Housing 10MΩ at 500V DC between internal stator and lead wire(+)
Dielectric Strength Applied AC 500V for one minute or AC 600V for 2 Seconds
between housing and lead wire(+)
Life Expectancy 70,000 Hours at 40°C, 65% humidity, 90%CL
Protection *Automatic Restart
Polarity Protection
* In a situation where the fan is locked by an external force while the electricity is on, an increase in coil temperature will be
prevented by temporarily turning off the electrical power to the motor. The fan will automatically restart when the locked rotor
condition is released.
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DC Brushless Fan
Performance Curves:
Dimensions:
Dimensions : Millimetres
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DC Brushless Fan
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DC Brushless Fan
Important Notice : This data sheet and its contents (the “Information”) belong to the members of the Premier Farnell group of companies (the “Group”) or are licensed to it. No licence is granted
for the use of it other than for information purposes in connection with the products to which it relates. No licence of any intellectual property rights is granted. The Information is subject to change
without notice and replaces all data sheets previously supplied. The Information supplied is believed to be accurate but the Group assumes no responsibility for its accuracy or completeness, any
error in or omission from it or for any use made of it. Users of this data sheet should check for themselves the Information and the suitability of the products for their purpose and not make any
assumptions based on information included or omitted. Liability for loss or damage resulting from any reliance on the Information or use of it (including liability resulting from negligence or where the
Group was aware of the possibility of such loss or damage arising) is excluded. This will not operate to limit or restrict the Group’s liability for death or personal injury resulting from its negligence.
Multicomp is the registered trademark of the Group. © Premier Farnell plc 2012.
Part Number Table
Description Part Number
DC Brushless Fan SG40281B1-0000-G99
Fan 3rd Wire Signal:
F Type (Frequency Generator)
Parameter Ratings Unit
Min. Typ. Max.
FG Supply Voltage(V+) - - 13.8 Voltage
FG Output Current (If) - - 2 mA
FG Output (VL) - 0.25 0.45 Voltage
FG Output (VH) - V+ - Voltage
Electrical Characteristics : ( at Ta = 25°C, Vcc = 12V)
