cui.com

date

08/16/2012 │ page 3 of 4

CUI Inc

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

DERATING CURVES

1. output power vs. ambient

temperature

2. efficiency vs. output power

(Vin=220Vac)

(Fro nt vie w)

(Bo ttom view)

(Side vie w)

2

13

4

1

2

4

3

MECHANICAL DRAWING

MECHANICAL

parameter

conditions/description

min

typ

max

units

dimensions

1.327 x 0.874 x 0.708 (33.70 x 22.20 x 18.00 mm)

inch

case material

UL94V-0

weight

20

g

units: mm [inches]

tolerance: ±0.5 [±0.02]

pin section tolerance: ±0.10 mm [±0.004]

3. efficiency vs. input voltage

(load=100%)

PIN CONNECTIONS

PIN

FUNTION

1

AC(N)

2

AC(L)

3-Vo

4+Vo

Load (%)

85

120

220

240

264

305

Input Voltage (Vac)

80

75

70

65

60

55

50

45

40

10

20

30

40

50

60

70

80

90

100

80

75

70

65

60

55

50

45

100

80

60

40

20

Ambient Temperature (°C)

-40

-20

0

20

40

55

70 80

100

120