date 10/15/2021

│ page 2 of 8

CUI Devices

│ SERIES: CFM-70C │ DESCRIPTION: DC AXIAL FAN

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INPUT

parameter

conditions/description

min

typ

max

units

5 Vdc input models

12 Vdc input models

24 Vdc input models

4.5

10.8

21.6

5

12

24

5.5

13.2

26.4

Vdc

Vdc

Vdc

starting voltage

5 Vdc input models

12 Vdc input models

24 Vdc input models

3.5

7.0

14.0

Vdc

Vdc

Vdc

Note:

7. See Model section on page 1 for specific input voltage ranges.

parameter

conditions/description

min

typ

max

units

rated speed

at rated voltage, 25°C, after 3 minutes

3,000

5,000

RPM

air flow

at 0 inch H

19.26

34.50

CFM

static pressure

at 0 CFM, see performance curves

0.08

0.22

inch H

noise

at 1 m, rated speed

29.5

40.6

dBA

Note:

8. See Model section on page 1 for specific values.

parameter

conditions/description

min

typ

max

units

auto restart

on all models

polarity protection

on all models

tachometer signal

available on “20” models

Notes:

9. See Application Notes for details.

SAFETY & COMPLIANCE

parameter

conditions/description

min

typ

max

units

insulation resistance

at 500 Vdc between frame and positive terminal

10

MΩ

dielectric strength

at 500 Vac, 60 Hz, 1 minute between housing and

positive terminal

5

mA

safety approvals

UL/cUL 507, TUV (EN/IEC 62368-1:2020+A11)

EMI/EMC

EN 55032:2015, EN 55035:2017

life expectancy

at 40°C, 65% RH, 90% confidence level

40,000

hours

RoHS

yes

ENVIRONMENTAL

parameter

conditions/description

min

typ

max

units

operating temperature

-10

70

°C

storage temperature

-40

75

°C

operating humidity

non-condensing

35

85

%

storage humidity

non-condensing

35

85

%

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