F251R
BRUSHLESS DC FANS
■ FEATURES
RoHS compliant
● Low noise, 11 dB (A) type by the correct application of
hydrodynamic design of impeller and frame
● Light weight (approx. 7 g)
■ STRUCTURE
● Frame and impeller
ABS/PBT alloy
● Bearing
1 sleeve bearing
■ PART NUMBER DESIGNATION
F251R - 12 L C
Series name
Bearing
1 sleeve bearing
Power supply
05:DC5 V
12:DC12 V
Air flow
LL:0.04 m3/min
L:0.05 m3/min
■ LIST OF PART NUMBERS
Power supply
DC5 V
Part number
F251R-05LLC
F251R-05LC
※ Verify the above part numbers when placing orders.
Power supply
DC12 V
Part number
F251R-12LLC
F251R-12LC
F251R
BRUSHLESS DC FANS
■ STANDARD SPECIFICATIONS
F251R-05LC
Item
F251R-05LLC
F251R-12LC
F251R-12LLC
Rated voltage
DC5 V
DC12 V
Voltage range
4.2 ~ 5.7 V
10.2 ~ 13.8 V
Rated current
0.08 A
0.06 A
0.05 A
0.04 A
Rotating speed
8000 min-1
6500 min-1
8000 min-1
6500 min-1
0.05 m3/min
0.04 m3/min
0.05 m3/min
0.04 m3/min
30 Pa
20 Pa
30 Pa
20 Pa
15 dB (A)
11 dB (A)
15 dB (A)
11 dB (A)
Air flow
Static pressure
Noise
Use environment
–10 ~ +60 °C (35 ~ 85 %RH)
Storage environment
–20 ~ +70 °C (35 ~ 85 %RH)
Approx. 7 g
Net weight
■ AIR FLOW PERFORMANCE CURVES
※ 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.
50
45
40
Static pressure (Pa)
35
30
F251R-XXL
25
20
F251R-XXLL
15
10
5
0
0.02
0.04
0.06
3
Air flow (m /min)
10 ± 0.5
Lead wire : UL1061 AWG28
Black : GND
Dimension of mounting hole for recommendation
Red : VOLTAGE
4 – φ 2.8
20 ± 0.5
□25 ± 0.5
φ
.6
23
20 ± 0.5
Air flow
(Unit: mm)
20 ± 0.5
150 ± 20
■ OUTLINE DIMENSIONS
4 – φ 2.8
4 – C2
20 ± 0.5
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