PWM Fans

Pulse Width Modulated DC Fans

JMC offers a host of high frequency Pulse Width Modulated (PWM) fans that perform at low noise levels by eliminating the power switching noise of the fan. The motor commutation noise is eliminated with high frequency PWM as the coils of the fan are being switched with a frequency above 20 kHz, which is outside the human audible range.

The speed of the fan is controlled by an external PWM signal. The JMC PWM ramps up linearly from a 20% duty cycle up to the fan's maximum rated speed. Because the fan can run at lower speeds it is more energy efficient and will therefore have a longer life.

Several of the listed PWM Fan are also available in 24 and 48 Volts

Data table reflects HIGH speed PWM Fans
All performance figures are at nominal voltage







PART
Number
FAN SIZE
VOLTAGE
(Vdc)
POWER
(W)
CURRENT
(A)
SPEED
(RPM)
NOISE
(dBA)
PRESSURE
(in. H20)
AIR FLOW
(CFM)
38x28
10.0-13.2
3.60
0.30
10000
38.0
0.33
10.0
40x25
10.8-13.2
2.40
0.20
10000
40.6
0.48
11.0
40x28
10.8-13.2
6.00
0.50
14000
48.0
0.95
15.4
40x28 FV
10.8-12.6
10.8
0.90
20000
61.0
2.10
30.0

04005B0004
40x40x56 CR

10.8-12.6

37.2

3.10

20000

68.0

2.70

40.0

04007B0004
40x50x38 CR

4.5-13.2

9.00

0.75

10200

56.0

0.66

22.4

05001B0004
50x15

10.8-13.2

1.92

0.16

5500

29.6

0.15

13.5

06001B0004

60x15

10.8-13.2

3.60

0.30

5000

37.9

0.27

25.0

06003B0004

60x25

10.8-13.2

5.40

0.45

7000

40.5

0.50

33.0

06004B0004

60x38 FV

10.8-13.2

10.40

0.87

8000

60.0

0.80

48.5

07000B0004

70x15

10.8-13.2

6.60

0.55

5200

45.0

0.22

36.6

07001B0004

70x25

10.8-13.2

4.80

0.40

5000

42.8

0.35

42.7

08000B0004

80x15

10.8-13.2

2.28

0.19

3200

35.0

0.13

33.6

08002B0004

80x25

10.8-13.2

6.6

0.55

5000

47.1

0.35

54.1

08003B0004

80x38 FV

10.8-13.2

27.60

2.30

8000

64.5

1.14

115.0

09200B0004

92x25

10.8-13.2

7.68

0.64

4000

42.5

0.27

82.0

09201B0004

92x32

10.8-13.2

10.20

0.85

4000

45.0

0.34

83.1

09202B0004

92x38

10.8-13.2

27.6

2.3

5700

53.2

0.80

120.0

12000B0004

120x25

10.8-13.2

9.00

0.75

3200

50.0

0.31

126.0

12002B0004

120x38

10.8-13.2

16.80

1.40

4100

53.0

0.50

148.0

12003B0004

120x38 FV

10.8-13.2

30.0

2.5

4500

60.3

0.82

200.0

09700B0004

97x94x33 Blower

10.8-13.2

19.20

1.60

4800

55.0

2.70

35.0

Click on the Part Number above to view or download a detailed specification drawing. The files are in Adobe Acrobat PDF format, if you do not have an Adobe Acrobat Reader a free plug-in may be downloaded from Adobe. All links will open in a new window.