cui.com

date 01/21/2021

│ page 2 of 5

CUI Inc

│ SERIES: SMM12 │ DESCRIPTION: AC-DC POWER SUPPLY

INPUT

parameter

conditions/description

min

typ

max

units

voltage

90

264

Vac

frequency

47

63

Hz

current

at 115 Vac, full load

at 230 Vac, full load

1.0

0.5

A

A

inrush current

at 115 Vac, cold start, full load

at 230 Vac, cold start, full load

30

60

A

A

leakage current

at 240 Vac, 50 Hz

0.1

mA

no load power consumption

at 115/230 Vac, 60/50 Hz

0.1

W

OUTPUT

parameter

conditions/description

min

typ

max

units

line regulation

at full load

±1

%

load regulation

±5

%

start-up time

at 100 Vac, output voltage rise to 90% of rated

output voltage

3

s

rise time

at rated input, full load, from 10% to 90% of rated

output voltage

50

ms

hold-up time

at nominal input, full load

8.3

ms

PROTECTIONS

parameter

conditions/description

min

typ

max

units

over voltage protection

output clamped with zener diode

150

%

over current protection

auto recovery

200

%

short circuit protection

continuous, auto recovery

SAFETY & COMPLIANCE

parameter

conditions/description

min

typ

max

units

isolation voltage

input to output at 5 mA for 2 seconds

4,000

Vac

insulation resistance

input to output at 500 Vdc for 3 seconds

50

MΩ

safety approvals

60601: UL/cUL, TUV

60950: J

EMI/EMC

FCC Part 15, Subpart B

ICES-003

EN 55011

J5502

MTBF

as per MIL-HDBK-217F at 25°C

100,000

hours

RoHS

yes

ENVIRONMENTAL

parameter

conditions/description

min

typ

max

units

operating temperature

0

40

°C

storage temperature

-20

85

°C

operating humidity

non-condensing

10

90

%

storage humidity

non-condensing

5

90

%

altitude

5,000

m

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