■
Specifications are subject to change without notice. Specifications in this catalog are for reference. The formal specification sheets will be submitted upon request.
COPAL ELEC
T
R
O
NIC
S
Oct,
2005
BRUSHLESS DC FANS F251R
■FEATURES
■STRUCTURE
● Low noise, 9 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
A type : 2 ball bearings
B type : 1 ball bearing and 1 sleeve bearing
C type : 1 sleeve bearing
■PART NUMBER DESIGNATION
F 2 5 1 R - 1 2 M B
Series name Bearing
Power supply
Air flow
L3 : 0.035 m3/min
LL : 0.04 m3/min
L : 0.05 m3/min
M : 0.06 m3/min
05 : DC5 V
12 : DC12 V
A : 2 ball bearings
B : 1 ball bearing and 1 sleeve bearing
C : 1 sleeve bearing
■LIST OF PART NUMBERS
Power supply
DC5 V
F251R-05LA
F251R-05LB
F251R-05LLA
F251R-05LLB
F251R-05LLC
F251R-05L3B
Part number Power supply
DC12 V
F251R-12MB
F251R-12LA
F251R-12LB
F251R-12LLA
F251R-12LLB
F251R-12LLC
F251R-12L3B
Part number
❈: Verify the above part numbers when placing orders.
RoHS compliant
■
Specifications are subject to change without notice. Specifications in this catalog are for reference. The formal specification sheets will be submitted upon request.
COPAL ELEC
T
R
O
NIC
S
Oct,
2005
F251R
BRUSHLESS DC FANS
■STANDARD SPECIFICATIONS
■OUTLINE DIMENSIONS (Unit: mm)
■AIR FLOW PERFORMANCE CURVES
Item
F251R-05LA
-05LB
F251R-05LLA
-05LLB
-05LLC
F251R-05L3B
-05L3C
F251R-12MB F251R-12LA
-12LB
F251R-12LLA
-12LLB
-12LLC
F251R-12L3B
-12L3C
DC5 V DC12 V
4.2 ~ 5.7 V 10.2 ~ 13.8 V
0.06 A 0.05 A 0.04 A 0.05 A 0.04 A 0.03 A 0.02 A
8000 min-1 6500 min-1 5500 min-1 10000 min-1 8000 min-1 6500 min-1 5500 min-1
0.05 m3/min 0.04 m3/min 0.035 m3/min 0.06 m3/min 0.05 m3/min 0.04 m3/min 0.035 m3/min
30 Pa 20 Pa 14 Pa 47 Pa 30 Pa 20 Pa 14 Pa
15 dB (A) 11 dB (A) 9 dB (A) 20 dB (A) 15 dB (A) 11 dB (A) 9 dB (A)
Approx. 7 g
Rated voltage
Voltage range
Rated current
Rotating speed
Air flow
Static pressure
Noise
Net weight
❈: Figures in the table are typical values under rated operating condition.
30
35
40
45
50
25
20
15
10
5
00.02
F251R-XXL3
F251R-XXM
F251R-XXL
F251R-XXLL
0.04 0.06
Air flow (m3/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
Rated voltage
Black: 0 V
Red: Dimension of mounting hole for recommendation
