cui.com
date 08/12/2011 │ page 2 of 5CUI Inc │ SERIES: VGS-50 │ DESCRIPTION: SWITCHING 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
1.3
0.65
A
A
inrush current at 230 Vac, full load, cold start 40 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
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
safety approvals UL60950-1 / TUV EN60950-1 Approved
EMI/EMC EN55022 : 1998+A1 : 2000+A2 : 2003 Class B, EN61000-3-2 : 2000+A2 : 2005 Class A,
EN61000-3-3 : 1995+A1 : 2001, EN61204-3 : 2000 EN50204 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
2mA
RoHS compliant yes
MTBF at 230 Vac, MIL-HDBK-217F 25 °C ambient 620,300 hrs
ENVIRONMENTAL
parameter conditions/description min nom max units
operating temperature see derating curve -20 70 °C
storage temperature see derating curve -40 85 °C
relative humidity non-condensing operating 20 90 %
temperature coeffi cient (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.
