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.
