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cui.com
date 02/12/2013
page 1 of 4
SERIES: VSBU-120-D DESCRIPTION: AC-DC POWER SUPPLY
MODEL output
voltage
output
current
output
power
ripple and
noise
efficiency
(Vdc)
max
(A)
max
(W)
max
(mVp-p)
typ
(%)
VSBU-120-D305 Vo1
Vo2
3.3
5
15
6
79.5
79.5
66
50
80
80
VSBU-120-D312 Vo1
Vo2
3.3
12
15
6
120
120
66
120
80
80
VSBU-120-D512 Vo1
Vo2
5
12
15
6
120
120
50
120
80
80
VSBU-120-D515 Vo1
Vo2
5
15
15
6
120
120
50
150
80
80
VSBU-120-D524A Vo1
Vo2
5
24
15
3.5
120
120
50
240
80
80
VSBU-120-D524B Vo1
Vo3
5
-24
15
2
120
120
50
-240
80
80
VSBU-120-D285 Vo1
Vo3
28
5
3.92
2
120
120
280
50
80
80
PART NUMBER KEY
VSBU-120 -DXXXXX - X
Base Number Output Voltage Power Fail Detect
“Blank” = No
P = Yes
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
Additional Resources: Product Page | 3D Model
Product Page 30 Model
cui.com
date 02/12/2013 page 2 of 4CUI Inc SERIES: VSBU-120-D DESCRIPTION: AC-DC POWER SUPPLY
INPUT
parameter conditions/description min typ max units
voltage 90 260 Vac
frequency 47 63 Hz
current at 115 Vac, full load
at 230 Vac, full load
1.7
1.0
A
A
inrush current at 115 Vac, 25°C, full load, cold start
at 230 Vac, 25°C, full load, cold start
30
65
37
75
A
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
isolation voltage primary to secondary
primary to earth ground
4,242
2,121
Vdc
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, 25°C 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 %
Additional Resources: Product Page | 3D Model
Product Page 30 Model Ambient Temperature (Dc)
cui.com
date 02/12/2013 page 3 of 4CUI Inc SERIES: VSBU-120-D DESCRIPTION: AC-DC POWER SUPPLY
0.56014.2
0.5
10.90.429
0.5
0.5
76.23.000
MAX3.0
33.61.323
0.5
0.5
20.30.799
30.81.213
0.5
27.61.087
0.5
L
N
G
0.5
5.000127.0
4.551115.6
0.5
5.7
0.5
0.5 0.224
0.217
2.571
0.5
0.5
5.5
65.3
76.23.000
4.0(MOUNTING HOLES)X4
M3XP0.5(MOUNTING HOLES)X4
0.5
27.61.087
20.30.799
0.5
40.0 1.575
0.5
13
100
80
60
50
40
20
Ambient Temperature (°C)
Load (%)
010203040506070
DERATING CURVES
MECHANICAL DRAWING
note:
1. Input connector mates with Molex housing 09-50-3051 and
Molex 2478 or 2578 series crimp terminal.
2. Output connector mates with Molex housing 09-50-3031 and
Molex 2478 or 2578 series crimp terminal.
CN1
1 ac line
2 ac neutral
3 ground
CN2
VSBU-120-DXXX
VSBU-120-D285
VSBU-120-D524B
1 V2 N/C N/C
2 V2 N/C N/C
3 V1 V1 V1
4 V1 V1 V1
5 V1 V1 V1
6 V1 V1 V1
7 com com com
8 com com com
9 com com com
10 n/c V3 V3
11 com com com
12 com com com
13 n/c n/c n/c
*pin 13 for optional
power fail detect
output power vs. ambient temperature
units: mm[inches]
tolerance: ±0.5mm
Additional Resources: Product Page | 3D Model
Product Page 30 Model
date 02/12/2013 page 4 of 4CUI Inc SERIES: VSBU-120-D 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 11/19/2010
1.01 applied new spec template 02/29/2012
1.02 corrected model number 04/23/2012
1.03 V-Infinity branding removed 08/14/2012
1.04 updated derating curve 02/12/2013
The revision history provided is for informational purposes only and is believed to be accurate.
REVISION HISTORY
Additional Resources: Product Page | 3D Model