Datasheet

DC Fan Motor
120 sq.×38t
(ASFN1)
RoHS Directive compatibility information
http://www.nais-e.com/
DIMENSIONS (mm inch)
Airflow
105±0.5
4.134±.020
119±0.5
4.685±.020
8-.169 dia.
8-4.3 dia.
1.512±.020
38.4±0.5
300 min
11.811 min
105±0.5119±0.5
4.134±.0204.685±.020
RATING
1. Standard speed
2. Middle speed
3. Low speed
Notes: 1. Values above without designations are averages.
2. Noise levels are based on measurements taken at a distance of 1 m from the front of the fan.
Par t number
Rated voltage
(V)
Input power (W)
Max./Av.
Rated current (mA)
Max./Av.
Rotation speed
(r/min)
Max. air flow
(m
3
/min)
Max. static pressure
(Pa)
Noise
(dB(A))
Weight
(g)
ASFN10B71 12 8.64/6.60 720/550
2,950 3.07 68.1 42.5 260
ASFN10B72 24 9.60/7.44 400/310
Par t number
Rated voltage
(V)
Input power (W)
Max./Av.
Rated current (mA)
Max./Av.
Rotation speed
(r/min)
Max. air flow
(m
3
/min)
Max. static pressure
(Pa)
Noise
(dB(A))
Weight
(g)
ASFN12B71 12 6.24/4.80 520/400
2,650 2.75 55.9 41.0 260
ASFN12B72 24 6.72/5.04 280/210
Par t number
Rated voltage
(V)
Input power (W)
Max./Av.
Rated current (mA)
Max./Av.
Rotation speed
(r/min)
Max. air flow
(m
3
/min)
Max. static pressure
(Pa)
Noise
(dB(A))
Weight
(g)
ASFN14B71 12 4.20/3.24 350/270
2,300 2.37 44.1 37.0 260
ASFN14B72 24 4.80/3.60 200/150
NEW
DATA (Airflow - Static pressure
Characteristic Curve)
Airflow (m
3
/min)
Static pressure (Pa)
Standard
Middle
100
80
60
40
20
0 1.0 2.0 3.0
Low
MATERIALS USED
Frame: plastic
Propeller: plastic
Bearings: ball bearings
Lead wires: UL1007 and AWG24
WIRING DIAGRAM
Red
Black
12V DC
24V DC
Fan motor
SPECIFICATIONS
Ambient temperature –10°C to +60°C +14°F to +140°F
Ambient humidity 15 to 85% RH
Temperature rise
Coil surface: Max. 50 °C 122°F (Nominal voltage, by resistive method)
External surface: Max. 20°C 68°F (Nominal voltage, by thermocouple method)
Breakdown voltage 500 V AC for 1 min. (between lead wire and external housing)
Insulation resistance Min. 10 MΩ (at 500 V DC)
Vibration
resistance
Frequency 10 to 55Hz
Double amplitude width 0.75mm
Applied direction X, Y and Z directions
Applied time 10 min. in each direction
Lead wire tensile strength 9.8 N, single wires did not break at 15 seconds
Fan blockage No coil burnout even after blockage of 72 hrs. at nominal voltage.
Reverse polarity power connection No damage even after reverse polarity connection for short time at nominal voltage.
Expected life
90% survival rate at 50,000 hrs. (When rotation frequency drops 30% of initial value
when run at nominal voltage under 25°C 77°F, room humidity.)
02/2006
11