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DTSPU21 SERIES
20 Watt
AC/DC Desktop Power Supplies
Rev C
“A” Type
Size: 4.11 x 1.65 x 1.22 inches
FEATURES
• RoHS Compliant
• < 0.3W No Load Power Consumption
• 20 Watts Output Power
• Class I (A & C Types); Class II (B Type)
• Single Outputs
• Approved as Limited Power Source (LPS)
• Up to 85% High Efficiency
• UL/cUL (UL 60950-1: 2nd ed.) & TUV/GS (EN 60950-
• Free Air Convection Cooling
1: 2nd ed.) Safety Approvals
• Energy Star 2.0, Efficiency Level VI • Meets FCC Part-15 Class B & CISPR-22 Class B
“B” Type
• 90-264VAC Input Voltage Range
Emission Limits
• 100% Burn-In Tested
• IEC-320-C14, C8, & C6 AC Inlet Connectors Available
• Short Circuit Protection
• Optional Output Connectors Available
SAFETY APPROVALS
Size: 3.90 x 1.65 x 1.22 inches
“C” Type
DESCRIPTION
Size: 3.90 x 1.65 x 1.22 inches
The DTSPU21 series of AC/DC desktop power supplies provides up to 20 Watts of continuous
output power. This series consists of single output models ranging from 5VDC to 50VDC with a
90~264VAC input voltage range. All units are UL 94V-1, RoHS, and CEC & Energy Star Level
VI compliant. This series also meets FCC Part-15 class B and CISPR-22 class B emission
limits. All models meet new CE requirements and have UL/cUL (UL 60950-1: 2nd edition) and
TUV/GS (EN 60950-1: 2nd edition) safety approvals. The DTSPU21 series has three types of
AC inlets available: IEC-320-C14 (Type “A”), IEC-320-C8 (Type “B”), and IEC-320-C6 (Type
“C”). All units have been 100% burn-in tested.
MODEL SELECTION TABLE
(1)
Model Number
Input Voltage Range Output Voltage (2)
Output Current
Total Regulation
Output Power
DTSPU21x-102
5~6 VDC
3.00 ~ 2.50 A
±5%
15W
DTSPU21x-103
6 ~ 8 VDC
2.30 ~ 1.87A
±5%
15W
DTSPU21x-104
8 ~ 11 VDC
2.50 ~ 1.81 A
±5%
20W
DTSPU21x-105
11 ~ 13 VDC
1.81 ~ 1.53 A
±5%
20W
DTSPU21x-106
13 ~ 16 VDC
1.53 ~ 1.25 A
±5%
20W
90~264 VAC
DTSPU21x-107
16 ~ 21 VDC
1.25 ~ 0.95 A
±4%
20W
DTSPU21x-108
21 ~ 27 VDC
0.95 ~ 0.74 A
±4%
20W
DTSPU21x-109
27 ~ 33 VDC
0.74 ~ 0.60 A
±3%
20W
DTSPU21x-110
33 ~ 40 VDC
0.60 ~ 0.50 A
±3%
20W
DTSPU21x-111
40 ~ 50 VDC
0.50 ~ 0.40 A
±3%
20W
NOTES
1. The “x” in the model represents the type of AC inlet connector. It can be “A” for IEC-320-C14 type, “B” for IEC-320-C8
type, or “C” for IEC-320-C6 type.
2. The output voltage is specified as a range (ex: 33~40VDC); the customer must specify what they would like the output
voltage set at.
09/17/2015
Wall Industries, Inc. • 5 Watson Brook Road, Exeter, NH 03833 • Tel: 603-778-2300 • Toll Free: 888-597-9255 •
Fax 603-778-9797
Website: www.wallindustries.com • e-mail: sales@wallindustries.com
Page 1 of 4
Rev C
DTSPU21 SERIES
20 Watt
AC/DC Desktop Power Supplies
SPECIFICATIONS: DTSPU21 SERIES
All specifications are based on 25°C, Nominal Input Voltage, and Maximum Output Current unless otherwise noted.
We reserve the right to change specifications based on technological advances.
SPECIFICATION
TEST CONDITIONS
Min
Typ
Max
Unit
INPUT SPECIFICATIONS
Safety Approvals Input Voltage Range
Operating Input Voltage Range
Input Voltage
Input Frequency
Input Current
Inrush Current
No Load Power Consumption
Low Line
High Line
Low Line
High Line
230VAC, no load
100VAC, full load
240VAC, full load
115VAC, full load, 25°C, cold start
230VAC, full load, 25°C, cold start
100
90
47
240
264
63
0.5
0.3
50
100
0.3
25
50
VAC
Hz
A
A
W
OUTPUT SPECIFICATIONS
Output Voltage
Line Regulation
Load Regulation
Output Power
Output Current
Ripple & Noise (peak to peak)
Hold-up Time
Start-up Time
Transient Response Time
Temperature Coefficient
LL to HL, full load
230VAC
See Table
1
5
See Table
See Table
100
0.5
3
90VAC, full load
110VAC, full load
100VAC, full load
100VAC, Full load to half load
0~50°C
8
3
4
±0.04
%
%
mVp-p
ms
s
ms
%/°C
PROTECTION
Short Circuit Protection
Automatic Recovery
GENERAL SPECIFICATIONS
Efficiency
Dielectric Withstanding Voltage
Isolation Resistance
Leakage Current
230 VAC, full load
Primary to Secondary
Primary to PE (Type A and Type C only)
Test Voltage = 500VDC
Type A, Type C
240VAC/60Hz
Type B
76
4242
2550
50
85
%
VDC
MΩ
0.75
0.25
mA
ENVIRONMENTAL SPECIFICATIONS
Operating Temperature
Storage Temperature
Operating Humidity
Storage Humidity
Operating Altitude (Elevation)
Vibration
Electro Static Discharge
Cooling
Flammability Rating
MTBF
Derating linearly from 100% Load at 40°C to 50% load at 70°C
10~95% RH
Non-Condensing
0
-40
0
0
+70
+85
95
95
2000
5
8
6
Free air convection
UL94V-1
All conditions
10~500Hz, 10min/1cycle, 60 min. each along X, Y, Z axes
Air Discharge, IEC61000-4-2
Contact Discharge, IEC61000-4-2
MIL-HDBK-217F, 25°C
°C
°C
%
%
M
G
kV
100,000
hours
PHYSICAL SPECIFICATIONS
Weight
A type
Dimensions (L x W x H)
B & C types
A Type
B Type
C Type
AC Inlets
6oz (170g)
4.11 x 1.65 x 1.22 in
(104.4 x 42.0 x 31.0 mm)
3.90 x 1.65 x 1.22 in
(99.0 x 42.0 x 31.0 mm)
IEC-320-C14
IEC-320-C8
IEC-320-C6
SAFETY, EMC, & COMPLIANCE
Safety Approvals
EMI Requirements for CISPR-22
EMI Requirements for FCC PART-15
Compliance
CEC & Energy Star
09/17/2015
220VAC
110VAC
UL/cUL (UL60950-1: 2nd edition.), TUV/GS (EN60950-1: 2nd edition), CE
B
Class
B
Class
RoHS and UL 94V-1
CEC and Energy Star 2.0, Efficiency
Level VI
Wall Industries, Inc. • 5 Watson Brook Road, Exeter, NH 03833 • Tel: 603-778-2300 • Toll Free: 888-597-9255 •
Fax 603-778-9797
Website: www.wallindustries.com • e-mail: sales@wallindustries.com
Page 2 of 4
Rev C
DTSPU21 SERIES
20 Watt
AC/DC Desktop Power Supplies
MECHANICAL DRAWINGS
“A” TYPE MODELS
“B” & “C” TYPE MODELS
09/17/2015
Wall Industries, Inc. • 5 Watson Brook Road, Exeter, NH 03833 • Tel: 603-778-2300 • Toll Free: 888-597-9255 •
Fax 603-778-9797
Website: www.wallindustries.com • e-mail: sales@wallindustries.com
Page 3 of 4
Rev C
DTSPU21 SERIES
20 Watt
AC/DC Desktop Power Supplies
DERATING
COMPANY INFORMATION
Wall Industries, Inc. has created custom and modified units for over 50 years. Our in-house research and development
engineers will provide a solution that exceeds your performance requirements on-time and on budget. Our ISO9001-2008
certification is just one example of our commitment to producing a high quality, well-documented product for our customers.
Our past projects demonstrate our commitment to you, our customer. Wall Industries, Inc. has a reputation for working closely
with its customers to ensure each solution meets or exceeds form, fit and function requirements. We will continue to provide
ongoing support for your project above and beyond the design and production phases. Give us a call today to discuss your
future projects.
Contact Wall Industries for further information:
Phone:
Toll Free:
Fax:
E-mail:
Web:
Address:
09/17/2015
(603)778-2300
(888)597-9255
(603)778-9797
sales@wallindustries.com
www.wallindustries.com
5 Watson Brook Rd.
Exeter, NH 03833
Wall Industries, Inc. • 5 Watson Brook Road, Exeter, NH 03833 • Tel: 603-778-2300 • Toll Free: 888-597-9255 •
Fax 603-778-9797
Website: www.wallindustries.com • e-mail: sales@wallindustries.com
Page 4 of 4