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date
04/20/2023
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SERIES: SDI250-U │ DESCRIPTION: AC-DC POWER SUPPLY
FEATURES
•
•
•
•
•
•
•
•
level VI efficiency
250 W power
universal input (90~264 Vac)
single regulated outputs
over voltage and short circuit protections
UL/cUL (60950-1 & 62368-1), PSE safety approvals
power factor correction
custom designs available
MODEL
output
voltage
output
current
output
power
ripple
and noise1
(Vdc)
max
(A)
max
(W)
max
(mVp-p)
SDI250-12-U
12
20
240
120
SDI250-19-U
19
13.2
250
190
VI
SDI250-24-U
24
10.4
250
240
VI2
SDI250-48-U
48
5.2
250
480
VI
SDI250-56-U
56
4.48
250
560
VI
Notes:
efficiency
level
VI2
1. At full load, nominal input, 20 MHz bandwidth oscilloscope, output terminated with 0.1 µF multilayer ceramic and 10 µF low ESR electrolytic capacitors.
2. CoC Tier 2 compliant.
PART NUMBER KEY
SDI250 - XX - UX - P219 - CXX
Base Number
Output Voltage
AC Inlet Type:
IEC320/C14
Reserved for Custom
Configurations
Input Cable:
“Blank” = No Cable
C = North America input cable
2 = Europe input cable
3 = United Kingdom input cable
4 = Australia input cable
5 = China input cable
6 = South Korea input cable
7 = Brazil input cable
8 = South Africa input cable
9 = Japan input cable
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DC Plug Type:
6 Pin Connector
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CUI Inc │ SERIES: SDI250-U │ DESCRIPTION: AC-DC POWER SUPPLY
date 04/20/2023 │ page 2 of 5
INPUT
parameter
conditions/description
min
voltage
90
frequency
47
typ
current
inrush current
at 230 Vac, full load, 25°C, cold start
leakage current
power factor correction
at full load
no load power consumption
12, 24 Vdc output models
all other models
max
units
264
Vac
63
Hz
3.3
A
120
A
3.5
mA
0.15
0.21
W
W
max
units
0.9
OUTPUT
parameter
conditions/description
min
regulation
typ
±5
%
PROTECTIONS
parameter
conditions/description
max
units
over voltage protection
output latch
min
typ
150
%
over current protection
output shut down, auto recovery
150
%
short circuit protection
output shut down
over temperature protection
output latch
max
units
SAFETY & COMPLIANCE
parameter
conditions/description
min
isolation voltage
input to output at 10 mA for 1 minute
input to ground at 10 mA for 1 minute
isolation resistance
input to output at 500 Vdc
input to ground at 500 Vdc
safety approvals
UL/cUL (60950-1, 62368-1), PSE, UKCA
EMI/EMC
FCC Part 15B Class B, CE
MTBF
as per Telcordia SR-332, 25°C
RoHS
yes
typ
3,000
1,500
Vac
Vac
10
10
MΩ
MΩ
300,000
hours
ENVIRONMENTAL
parameter
conditions/description
min
operating temperature
storage temperature
typ
max
units
0
40
°C
-20
80
°C
operating humidity
non-condensing
20
80
%
storage humidity
non-condensing
10
90
%
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CUI Inc │ SERIES: SDI250-U │ DESCRIPTION: AC-DC POWER SUPPLY
date 04/20/2023 │ page 3 of 5
MECHANICAL
parameter
conditions/description
dimensions
204.0 x 94.0 x 43.5
min
inlet plug
IEC320/C14
weight
without ac cord: 12 Vdc output model
without ac cord: 19, 24 Vdc output models
without ac cord: 48, 56 Vdc output models
1,110
1,040
1,020
units: mm
tolerance: ±1.0 mm
DC CORD
units: mm
Table 1
MODEL NO.
CABLE
CORD LENGTH
SDI250-12-U
UL2464, 16 AWG, 6C
1,200 mm ±30
SDI250-19-U3
UL2464, 16 AWG, 4C
1,200 mm ±30
3
SDI250-24-U
UL2464, 16 AWG, 4C
1,200 mm ±30
SDI250-48-U3
UL2464, 18 AWG, 4C
1,200 mm ±30
SDI250-56-U
UL2464, 18 AWG, 4C
1,200 mm ±30
3
Note:
max
units
mm
MECHANICAL DRAWING
Plug: Molex 39-01-2065
typ
3. P2 and P5 are not connected on 19, 24, 48, and 56 Vdc output models.
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g
g
g
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CUI Inc │ SERIES: SDI250-U │ DESCRIPTION: AC-DC POWER SUPPLY
date 04/20/2023 │ page 4 of 5
AC CORD
units: mm
cord length
NORTH AMERICA
EUROPE
UNITED KINGDOM
AUSTRALIA
CHINA
SOUTH KOREA
BRAZIL
SOUTH AFRICA
JAPAN
Table 2
AC INPUT
CORD LENGTH
North America
1,830 mm ±30
Europe
1,830 mm ±30
United Kingdom
1,830 mm ±30
Australia
1,830 mm ±30
China
1,830 mm ±30
South Korea
1,830 mm ±50
Brazil
1,830 mm ±30
South Africa
1,830 mm ±50
Japan
1,830 mm ±30
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CUI Inc │ SERIES: SDI250-U │ DESCRIPTION: AC-DC POWER SUPPLY
date 04/20/2023 │ page 5 of 5
REVISION HISTORY
rev.
description
date
1.0
initial release
08/28/2018
1.01
company logo updated
07/23/2020
1.02
UKCA added to the specification
05/25/2021
dc cord updated
04/20/2023
1.03
The revision history provided is for informational purposes only and is believed to be accurate.
Headquarters
20050 SW 112th Ave.
Tualatin, OR 97062
800.275.4899
Fax 503.612.2383
cui.com
techsupport@cui.com
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions:
(1) This device may not cause harmful interference, and
(2) this device must accept any interference received, including interference that may cause undesired operation.
CUI offers a one (1) 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.