Additional Resources: Product Page | 3D Model
date 02/12/2013
page 1 of 4
SERIES: VSBU-120-D DESCRIPTION: AC-DC POWER SUPPLY
FEATURES
up to 120 W continuous power
industry standard 3 x 5 footprint
universal input 90~260 Vac
dual output
active power correction
internal EMI filter
no minimum load required
input surge current, over voltage, over load,
and over current protections
UL/cUL and TUV safety approvals
efficiency 80%
RoHS
output output output ripple and efficiency
MODEL
voltage current power noise
max max max typ
(Vdc) (A) (W) (mVp-p) (%)
Vo1 3.3 15 79.5 66 80
VSBU-120-D305
Vo2 5 6 79.5 50 80
Vo1 3.3 15 120 66 80
VSBU-120-D312
Vo2 12 6 120 120 80
Vo1 5 15 120 50 80
VSBU-120-D512
Vo2 12 6 120 120 80
Vo1 5 15 120 50 80
VSBU-120-D515
Vo2 15 6 120 150 80
Vo1 5 15 120 50 80
VSBU-120-D524A
Vo2 24 3.5 120 240 80
Vo1 5 15 120 50 80
VSBU-120-D524B
Vo3 -24 2 120 -240 80
Vo1 28 3.92 120 280 80
VSBU-120-D285
Vo3 5 2 120 50 80
PART NUMBER KEY
VSBU-120 -DXXXXX - X
Base Number Output Voltage Power Fail Detect
Blank = No
P = Yes
cui.comAdditional Resources: Product Page | 3D Model
CUI Inc SERIES: VSBU-120-D DESCRIPTION: AC-DC POWER SUPPLY date 02/12/2013 page 2 of 4
INPUT
parameter conditions/description min typ max units
voltage 90 260 Vac
frequency 47 63 Hz
at 115 Vac, full load 1.7 A
current
at 230 Vac, full load 1.0 A
at 115 Vac, 25C, full load, cold start 30 37 A
inrush current
at 230 Vac, 25C, full load, cold start 65 75 A
power factor correction full load at 90 ~ 260 Vac 0.95 0.97 1.0
OUTPUT
parameter conditions/description min typ max units
line regulation full load 0.5 1 %
load regulation at 230 Vac 3 5 %
temperature coefficient all output -0.04 0.04 %/C
transient response full load to half load at 100 Vac 4 ms
start-up full load at 100 Vac 0.3 1 2 s
hold-up full load at 110 Vac 16 ms
PROTECTIONS
parameter conditions/description min typ max units
over voltage protection 112 132 %
over current protection 110 150 %
SAFETY & COMPLIANCE
parameter conditions/description min typ max units
primary to secondary 4,242 Vdc
isolation voltage
primary to earth ground 2,121 Vdc
isolation resistance test voltage of 500 Vdc 50 M
safety approvals UL 60950-1 2nd edition, EN 60950-1 2nd edition
EMI/EMC CISPR 22 class B, FCC part-15 class B
leakage current full load at 240 Vac 0.4 0.75 mA
RoHS compliant yes
MTBF MIL-HDSK-217F, 25C ambient 100,000 hrs
ENVIRONMENTAL
parameter conditions/description min typ max units
operating temperature 0 70 C
storage temperature -40 85 C
operating humidity non-condensing 5 95 %
storage humidity 0 75 %
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