BRUSHLESS DC FANS F251R
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FEATURES
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STRUCTURE
● Low noise, 11 dB (A) type by the correct application of
hydrodynamic design of impeller and frame
● Light weight (approx. 7 g)
● Frame and impeller
ABS/PBT alloy
● Bearing
1 sleeve bearing
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PART NUMBER DESIGNATION
F 2 5 1 R - 1 2 L C
Series name Bearing
Power supply
Air flow
LL
：
0.04 m3/min
L
：
0.05 m3/min
05
：
DC5 V
12
：
DC12 V
1 sleeve bearing
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LIST OF PART NUMBERS
Power supply
DC5 V
F251R-05LLC
F251R-05LC
Part number Power supply
DC12 V
F251R-12LLC
F251R-12LC
Part number
※
Verify the above part numbers when placing orders.
RoHS compliant
Bearing
1 sleeve bearing
F251R
BRUSHLESS DC FANS
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STANDARD SPECIFICATIONS
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OUTLINE DIMENSIONS (Unit: mm)
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AIR FLOW PERFORMANCE CURVES
Item F251R-05LC F251R-05LLC F251R-12LC F251R-12LLC
Rated voltage
Voltage range
Rated current
Rotating speed
Air flow
Static pressure
Noise
Use environment
30
35
40
45
50
25
20
15
10
5
00.02
F251R-XXL
F251R-XXLL
0.04 0.06
Air flow (m
3
/min)
Static pressure (Pa)
150 ± 20
20 ± 0.5
20 ± 0.5
10 ± 0.5
Air flow
4 – C2
4 – 2.8
□25 ± 0.5 20 ± 0.5
20 ± 0.5
φ
4 – 2.8
φ
23.6
φ
Lead wire : UL1061 AWG28
Black : GND
Red : VOLTAGE
Dimension of mounting hole for recommendation
0.08 A
8000 min-1
0.05 m3/min
30 Pa
15 dB (A)
0.06 A
6500 min-1
0.04 m3/min
20 Pa
11 dB (A)
0.05 A
8000 min-1
0.05 m3/min
30 Pa
15 dB (A)
0.04 A
6500 min-1
0.04 m3/min
20 Pa
11 dB (A)
DC5 V
4.2 ~ 5.7 V
DC12 V
10.2 ~ 13.8 V
–10 ~ +60 °C (35 ~ 85 %RH)
Storage environment
–20 ~ +70 °C (35 ~ 85 %RH)
Net weight Approx. 7 g
※
The specifications above are typical values measured on the
conditions of no-loading running with rated voltage in the
circumstances of 25 °C ± 2 °C, 35~ 85 %RH. Please contact us if you
would liketo check the specifications in different circumstances.
