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

1.512

±.020

38.4

±0.5

300 min

11.811 min

105

±0.5

119

±0.5

4.134

±.020

4.685

±.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.

Part number

Rated voltage

(V)

Input power (W)

Max./Av.

Rated current (mA)

Max./Av.

Rotation speed

(r/min)

Max. air flow

(m3/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

Part number

Rated voltage

(V)

Input power (W)

Max./Av.

Rated current (mA)

Max./Av.

Rotation speed

(r/min)

Max. air flow

(m3/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

Part number

Rated voltage

(V)

Input power (W)

Max./Av.

Rated current (mA)

Max./Av.

Rotation speed

(r/min)

Max. air flow

(m3/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 (m3/min)

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 M

Ω (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