• over voltage, over current, and short circuit protections
• UL/cUL safety approvals
• efficiency up to 85%
MODEL
VSK-S15-3R3U-T
VSK-S15-5U-T
VSK-S15-9U-T
VSK-S15-12U-T
VSK-S15-15U-T
VSK-S15-24U-T
VSK-S15-48U-T
Notes:
output
voltage
(Vdc)
output
current
max
(A)
output
power
max
(W)
ripple
and noise
1
typ
(mVp-p)
efficiency
typ
(%)
3.3
5
9
12
15
24
48
3
2.8
1.6
1.25
1.0
0.625
0.32
9.9
14
14.4
15
15
15
15
50
50
50
50
50
50
50
73
76
78
80
80
84
85
1. Ripple and noise are measured at 20 MHz BW by “parallel cable” method with 1 uF ceramic and 10 uF electrolytic capacitors on the output.
PART NUMBER KEY
VSK-S15 -
XXU
- T
Base Number
Output Voltage
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product page.
CUI Inc
│
SERIES:
VSK-S15-T
│
DESCRIPTION:
AC-DC POWER SUPPLY
date
06/10/2015
│
page
2 of 6
INPUT
parameter
voltage
frequency
current
inrush current
leakage current
input fuse
at 115 Vac
at 230 Vac
at 115 Vac
at 230 Vac
at 230 Vac, 50 Hz (RMS)
2 A/250 V, slow-blow type (included on chassis)
10
20
0.1
conditions/description
min
85
100
47
typ
max
264
370
63
370
220
units
Vac
Vdc
Hz
mA
mA
A
A
mA
OUTPUT
parameter
conditions/description
3.3 Vdc output model
5 Vdc output model
9 Vdc output model
12 Vdc output model
15 Vdc output model
24 Vdc output model
48 Vdc output model
at full load
at 10~100% load
at 115 Vac
at 230 Vac
±0.5
±1
±2
15
80
65
±0.02
min
typ
max
36,000
20,000
6,000
3,000
3,000
900
370
units
μF
μF
μF
μF
μF
μF
μF
%
%
%
ms
ms
kHz
%/°C
capacitive load
line regulation
load regulation
voltage set accuracy
hold-up time
switching frequency
temperature coefficient
PROTECTIONS
parameter
over current protection
short circuit protection
conditions/description
auto restart
continuous, auto restart
3.3 Vdc output model
5 Vdc output model
9 Vdc output model
12 Vdc output model
15 Vdc output model
24 Vdc output model
48 Vdc output model
7.5
7.5
12
20
20
30
60
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
min
110
typ
max
units
%
over voltage protection
SAFETY & COMPLIANCE
parameter
isolation voltage
safety approvals
safety class
conducted emissions
radiated emissions
ESD
radiated immunity
EFT/burst
conditions/description
input to output for 1 minute
UL60950-1, CE
class II
CISPR22/EN55022, Class B
CISPR22/EN55022, Class B
IEC/EN61000-4-2 Class B, contact ±6 kV/air ±8 kV
IEC/EN61000-4-3 Class A, 10V/m
IEC/EN61000-4-4 Class B, ±2 kV
IEC/EN61000-4-4 Class B, ±4 kV (external circuit required, see figure 2)
min
3,000
typ
max
units
Vac
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CUI Inc
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SERIES:
VSK-S15-T
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DESCRIPTION:
AC-DC POWER SUPPLY
date
06/10/2015
│
page
3 of 6
SAFETY & COMPLIANCE (CONTINUED)
parameter
surge
conducted immunity
PFM
voltage dips & interruptions
MTBF
RoHS
conditions/description
min
typ
max
units
IEC/EN61000-4-5 Class B, ±1 kV/±2 kV
IEC/EN61000-4-5 Class B, ±2 kV/±4 kV (external circuit required, see figure 2)
IEC/EN61000-4-6 Class A, 10 Vr.m.s
IEC/EN61000-4-8 Class A, 10 A/m
IEC/EN61000-4-11 Class B, 0%-70%
as per MIL-HDBK-217F at 25°C
2011/65/EU
300,000
hrs
ENVIRONMENTAL
parameter
operating temperature
storage temperature
storage humidity
non-condensing
conditions/description
see derating curves
min
-40
-40
typ
max
70
105
95
units
°C
°C
%
DERATING CURVES
load vs. ambient temperature
(at 100~240 Vac)
100
80
60
40
20
100
75
60
load vs. input voltage (Vac)
(at 25°C)
~
~
100
75
60
load vs. input voltage (Vdc)
(at 25°C)
~
~
Safe operating area
40
20
120
Load (%)
~
~
Load (%)
Safe operating area
Safe operating area
40
20
~
~
~
~
Load (%)
-40
-10 -5
5
25
35
45
55
65 70 75
85
95 100 105
115
125
235 240 245
255
264
Ambient Temperature (°C)
Input Voltage (Vac)
100
~
~
340
370
Input Voltage (Vdc)
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CUI Inc
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SERIES:
VSK-S15-T
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DESCRIPTION:
AC-DC POWER SUPPLY
date
06/10/2015
│
page
4 of 6
MECHANICAL
parameter
dimensions
case material
weight
cooling
convection cooling
conditions/description
96.10 x 54.00 x 31.00 (3.783 x 2.126 x 1.22 inch)
UL94V-0
135
g
min
typ
max
units
mm
MECHANICAL DRAWING
units: mm[inches]
tolerance: ±0.50[±0.020]
wire range: 24~12 AWG
PIN CONNECTIONS
PIN
1
2
3
4
5
6
7
8
FUNCTION
NC
AC(N)
AC(L)
-Vo
NC
NC
NC
+Vo
Top View
Side View
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product page.
CUI Inc
│
SERIES:
VSK-S15-T
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DESCRIPTION:
AC-DC POWER SUPPLY
date
06/10/2015
│
page
5 of 6
TYPICAL APPLICATION CIRCUIT
Figure 1
AC(L)
FU S E
AC(L)
M OV 1
+Vo
C1
C2
T VS 1
LOAD
AC / DC
AC(N)
-Vo
AC(N)
Table 1
Recommended External Circuit Components
MODEL
VSK-S15-3R3U-T
VSK-S15-5U-T
VSK-S15-9U-T
VSK-S15-12U-T
VSK-S15-15U-T
VSK-S15-24U-T
VSK-S15-48U-T
Note:
1. Fuse included on chassis
FUSE
1
2A/250V
2A/250V
2A/250V
2A/250V
2A/250V
2A/250V
2A/250V
MOV1
S14K350
S14K350
S14K350
S14K350
S14K350
S14K350
S14K350
C1
1µF
1µF
1µF
1µF
1µF
1μF
1µF
C2
680μF
680μF
470μF
220μF
220μF
68μF
33μF
TVS
SMBJ7.0A
SMBJ7.0A
SMBJ12A
SMBJ20A
SMBJ20A
SMBJ30A
SMBJ64A
EMC RECOMMENDED CIRCUIT
Figure 2
FUSE
AC( L)
CY1
MOV1
CX
CY2
LDM
LCM
AC(L)
+Vo
C1
C2
TVS1
RL
+
ACDC
-Vo
AC(N)
AC(N)
Table 2
Recommended External Circuit Components
MOV1
CY1, CY2
CX
LCM
LDM
Note:
Also refer to Table 1
S14K350
1000pF/400Vac
0.1μF/275Vac
10mH
4.7μH/2A
Notes:
1. Output filtering capacitor C2 is an electrolytic capacitor, It is recommended to use high frequency and low impedance electrolytic capacitors. For capacitance and current
of capacitor please refer to manufacture’s datasheet. Voltage derating of capacitor should be 80% or above. C1 is used to filter high frequency noise. TVS is
recommended component to protect post-circuits (when converter fails).
2. All specifications measured at Ta=25C, humidity <75%, nominal input voltage, and rated output load, unless otherwise specified.
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