cui.com
date 04/11/2017
page 1 of 5
SERIES: VGS-25 │ DESCRIPTION: AC-DC POWER SUPPLY
PART NUMBER KEY
VGS-25 - XX
Base Number Output Voltage
FEATURES
• up to 27 W continuous power
• compact footprint
• universal input (88~264 Vac / 125~373 Vdc)
• single output from 3.3~48 V
• over voltage, over load, and short circuit protections
• UL/cUL and TUV safety approvals
• long life electrolytic capacitors
• no load power consumption < 0.5 W
• efficiency 88%
RoHS
MODEL output
voltage
output
current
output
power
ripple
and noise
efciency
(Vdc)
max
(A)
max
(W)
max
(mVp-p) (%)
VGS-25-3.3 3.3 6 19.8 100 74
VGS-25-5* 5 5 25 100 83
VGS-25-12 12 2.1 25.2 120 85
VGS-25-15 15 1.7 25.5 120 86
VGS-25-24 24 1.1 26.4 120 87
VGS-25-48 48 0.57 27.36 120 88
Notes: * Discontinued model.
For more information, please visit the product page.
cui.com
date 04/11/2017 │ page 2 of 5CUI Inc │ SERIES: VGS-25 │ DESCRIPTION: AC-DC POWER SUPPLY
INPUT
parameter conditions/description min nom max units
voltage range 88
125
264
373
Vac
Vdc
frequency range 50 60 Hz
current at 115 Vac, cold start
at 230 Vac, cold start
0.7
0.35
A
A
inrush current at 230 Vac, full load, cold start 30 A
OUTPUT
parameter conditions/description min nom max units
voltage adjust ±10
voltage tolerance
3.3 V models
5 V models
all other models
±3
±2
±1
%
%
%
line regulation low line to high line ±0.5 %
load regulation
3.3 V models
5 V models
all other models
±2.0
±1.0
±0.5
%
%
%
start-up time at 115 Vac, cold start
at 230 Vac, cold start
1.0
0.8
s
s
rise time at 115 Vac, cold start
at 230 Vac, cold start
65
50
ms
ms
hold-up time at 115 Vac, cold start
at 230 Vac, cold start
10
32
ms
ms
PROTECTIONS
parameter conditions/description min nom max units
over load Hiccup mode, auto recovery 110 %
over voltage latch off mode 115 150 %
over-temperature 52 °C
short circuit continuous
SAFETY & COMPLIANCE
parameter conditions/description min nom max units
isolation voltage
input to output:
input to case:
output to case:
4,242
2,121
707
Vdc
Vdc
Vdc
isolation resistance input to output at 500 V dc 100 MΩ
safety approvals UL 60950-1 / TUV EN 60950-1
EMI/EMC
EN 55022 : 1998+A1 : 2000+A2 : 2003 Class B, EN 61000-3-2 : 2000+A2 : 2005 Class A, EN 61000-
3-3 : 1995+A1 : 2001, EN 61204-3 : 2000 EN 50204 1998+A1 : 2001+A2 : 2003 light industry level,
criteria A
leakage current measured per IEC 60950-1, paragraph 5.1,
test voltage of 240 Vac/60 Hz 2 mA
RoHS compliant yes
MTBF at 230 Vac, MIL-HDBK-217F 25 °C ambient 620,300 hrs
For more information, please visit the product page.
cui.com
date 04/11/2017 │ page 3 of 5CUI Inc │ SERIES: VGS-25 │ DESCRIPTION: AC-DC POWER SUPPLY
Ambient temperature (°C)
Load factor (%)
Load factor (%)
-25 40 50
0
20
60
40
80
100
60
100
80
40
60
20
0
90
Input Voltage Vac
264
100
Load vs. Temp Load vs. Input Voltage
110 120
010 20 30 70
DERATING CURVES
ENVIRONMENTAL
parameter conditions/description min nom max units
operating temperature see derating curve -20 70 °C
storage temperature see derating curve -40 85 °C
temperature derating linearly from 100% load at 50°C to 50% load at 70°C
relative humidity non-condensing operating 20 90 %
temperature coefcient (0 ~ 50°C) 0.3 %/°C
vibration (10 ~ 500 Hz, 1 hour per axis, 3 hours total) 5 Grms
For more information, please visit the product page.
cui.com
date 04/11/2017 │ page 4 of 5CUI Inc │ SERIES: VGS-25 │ DESCRIPTION: AC-DC POWER SUPPLY
7.62
(4 PLCS
)
M3
(2 PLCS)
2.50 0.098
14.00 0.551
28.25 1.112
2.61866.50
12.00 0.472
M3
(2 PLCS)
12.30 0.484 53.40 2.102
6.72
(5 PLCS
)
25.75 1.014
N
GND
-V
L
+V
78.50 3.091
51.50 2.028
MECHANICAL DRAWING
Note:
tolerance: ±0.3mm unless otherwise specied
terminal block screws #6-32 (5 PLCS)
For more information, please visit the product page.
date 04/11/2017 │ page 5 of 5CUI Inc │ SERIES: VGS-25 │ DESCRIPTION: AC-DC POWER SUPPLY
CUI offers a two (2) year limited warranty. Complete warranty information is listed on our website.
CUI reserves the right to make changes to the product at any time without notice. Information provided by CUI is believed to be accurate and reliable. However, no responsibility is
assumed by CUI for its use, nor for any infringements of patents or other rights of third parties which may result from its use.
CUI products are not authorized or warranted for use as critical components in equipment that requires an extremely high level of reliability. A critical
component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to
affect its safety or effectiveness.
Headquarters
20050 SW 112th Ave.
Tualatin, OR 97062
800.275.4899
Fax 503.612.2383
cui.com
techsupport@cui.com
rev. description date
1.0 initial release 07/21/2008
1.01 V-Innity branding removed 08/21/2012
1.02 corrected output current values 02/14/2013
1.03 discontinued VGS-25-5 model 04/11/2017
The revision history provided is for informational purposes only and is believed to be accurate.
REVISION HISTORY
For more information, please visit the product page.
