cui.com

date

08/16/2012 │ page 2 of 4

CUI Inc

│ SERIES: VSK-S2 │ DESCRIPTION: AC-DC POWER SUPPLY

INPUT

parameter

conditions/description

min

typ

max

units

voltage

85

120

305

430

Vac

Vdc

frequency

47

63

Hz

current

at 110 Vac

at 230 Vac

44

25

mA

mA

inrush current

at 110 Vac

at 230 Vac

5

11

A

A

OUTPUT

parameter

conditions/description

min

typ

max

units

line regulation

±2

%

load regulation

10 ~ 100%

±5

%

ripple and noise

100

200

mVp-p

voltage accuracy

3.3 V model

all other models

±6

±5

%

%

switching frequency

100

kHz

PROTECTIONS

parameter

conditions/description

min

typ

max

units

over current protection

110

%

short circuit protection

auto recovery with no damage from a short on any output

SAFETY & COMPLIANCE

parameter

conditions/description

min

typ

max

units

isolation voltage

for 1 minute

3,000

Vac

safety approvals

UL 60950-1, EN 60950-1/IEC 60950-1

safety class

class II

EMI/EMC

EN 55022 Class B, IEC/EN 61000-4-(2,3,4,5,6)

leakage current

0.15

mA

RoHS compliant

yes

MTBF

25°C

300,000

hrs

ENVIRONMENTAL

parameter

conditions/description

min

typ

max

units

operating temperature

-25

70

°C

storage temperature

-40

85

°C

operating humidity

non-condensing

30

90

%

storage humidity

20

95

%