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DATASHEET
Rev. B
PSPSD-25 SERIES
88~264VAC Input Voltage Range
Single Outputs
19.8~26.4 Watts Output Power
AC/DC Switching Power Supplies
FEATURES
 Single Outputs
 19.8~26.4W Output Power
 RoHS Compliant
 100% Full Load Burn-in Tested
 Universal AC Input Range (Full Range)
 Output Voltages Available from 3.3VDC to 24VDC
 Over Voltage, Over Load, and Short Circuit Protected
 Dimensions: 3.11” x 2.01” x 1.13”
 Wide Operating Ambient Temperature (-20°C to +70°C)
 High Efficiency and High Reliability
 All Using 105°C Long Life Electrolytic Capacitors
 ±10% Output Voltage Adjustability
DESCRIPTION
The PSPSD-25 series of AC/DC switching power supplies offers up to 26.4 Watts of output power in a 3.11” x 2.01” x
1.13” enclosed case. All models have a single output and a universal AC input voltage range of 88~264VAC. Some
features include wide operating temperature range (-20°C to +70°C), ±10% output adjustability, and over load, over
voltage, and short circuit protection. These supplies are RoHS compliant and have UL/cUL, CB, and CE safety approvals.
All models are 100% full load burn-in tested.
07/18/2012
Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833
603-778-2300 www.wallindustries.com Fax 603-778-9797
Page 1 of 4
Rev. B
PSPSD-25 Series
Single Outputs
19.8~26.4 Watts
AC/DC Switching Power Supplies
SPECIFICATIONS: PSPSD-25 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.
INPUT SPECIFICATIONS
Input Voltage Range
Input Frequency
88~264VAC
47~63Hz
3.3V output model: 0.35A max.
5V, 12V, 15V, & 24V output models: 0.7A max.
Cold Start 20A typ. at 115VAC; 40A typ. at 230VAC
AC Current
Inrush Current
OUTPUT SPECIFICATIONS
Output Voltage
Voltage Accuracy
Voltage Adjustment Range
Line Regulation
Load Regulation
Output Current
Ripple & Noise (See Note 1)
Setup Time
Hold Up Time
Temperature Coefficient
Overshoot and Undershoot
PROTECTION
Over Load Protection
Over Voltage Protection
Short Circuit Protection
GENERAL SPECIFICATIONS
Efficiency (typical)
Primary to Secondary
Withstand Voltage
Primary to PG
Secondary to PG
Isolation Resistance
Input to Output
Leakage Current
Input to PG
ENVIRONMENTAL SPECIFICATIONS
Operating Ambient Temperature
Storage Temperature
Working Humidity
Storage Humidity
Cooling Method
MTBF (MIL-HDBK-217F)
PHYSICAL SPECIFICATIONS
Dimensions (L x W x H)
Packing
SAFETY & EMC (See Note 2)
Safety Standards
EMI Conduction and Radiation
Harmonic Current
EMS Immunity
07/18/2012
See Table
3.3V & 5V output models: ±2.0%
12V, 15V & 24V output models: ±1.0%
±10% of rated output voltage
±0.5%
3.3V & 5V output models: ±2.0%
12V, 15V & 24V output models: ±1.0%
See Table
See Table
< 2.0s at 115VAC and full load; < 1.0s at 230VAC and full load
> 14ms at 115VAC and full load; > 30ms at 230VAC and full load
±0.03%/°C
< 5.0%
105% ~ 150% of rated output power, hiccup mode, auto-recovery
105% ~ 150% of rated output voltage, constant voltage
Long-term mode, auto-recovery
See Table
3000VAC; ≤ 10mA
1500VAC; ≤ 10mA
500VDC; ≤ 10mA
≥ 100MΩ
< 0.25mA
< 0.75mA
-20°C to +70°C
-40°C to +85°C
20 ~ 90% RH (non-condensing)
10 ~ 95% RH (non-condensing)
Free air convection
> 100,000 hours @ 25°C and full load
3.11 x 2.01 x 1.13 inches (79 x 51 x 28.8 mm)
48PCS/CTN, 10.4Kgs, 0.03CBM
UL60950-1, EN60950-1: 2006
Compliance to EN55022 (CISPR22) Class B
Compliance to EN61000-3-2,-3
Compliance to EN61000-4-2,3,4,5,6,8,11; ENV50204, light industry level, criteria A
Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833
603-778-2300 www.wallindustries.com Fax 603-778-9797
Page 2 of 4
PSPSD-25 Series
Single Outputs
19.8~26.4 Watts
AC/DC Switching Power Supplies
Rev. B
MODEL SELECTION TABLE
Ripple & Noise (1)
Efficiency
Output
Voltage
Output
Current
-20°C~0°C
0°C~+70°C
Output
Power
3.3 VDC
6A
80mVp-p
80mVp-p
19.8W
70%
71%
5 VDC
5A
80mVp-p
80mVp-p
25W
75%
77%
12 VDC
2.1A
120mVp-p
120mVp-p
25W
80%
82%
PSPSD-25-S15
15 VDC
1.7A
120mVp-p
120mVp-p
25.5W
81%
83%
PSPSD-25-S24
24 VDC
1.1A
120mVp-p
240mVp-p
26.4W
83%
84%
Model Number
Input Voltage
PSPSD-25-S3.3
PSPSD-25-S5
PSPSD-25-S12
88 ~ 264 VAC
115VAC 230VAC
NOTES
1. Ripple & noise is measured at 20MHz bandwidth by using a 12" twisted pair-wire terminated with 0.1μF and 47μF
capacitors in parallel.
2. The SPS is considered a component which will be installed into final equipment. The final equipment must be
re-confirmed that it still meets EMC directives.
BLOCK DIAGRAM
I/P
EMI
FILTER
FG
RECTIFIERS
&
FILTER
O.L.P.
POWER
SWITCHING
RECTIFIERS
&
FILTER
PWM
CONTROL
+V
_
V
DETECTION
CIRCUIT
LOAD (%)
DERATING CURVE
AMBIENT TEMPERATURE (°C)
07/18/2012
Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833
603-778-2300 www.wallindustries.com Fax 603-778-9797
Page 3 of 4
PSPSD-25 Series
Single Outputs
19.8~26.4 Watts
AC/DC Switching Power Supplies
Rev. B
MECHANICAL DRAWING
Unit: inches (mm)
3.11 (79)
0.41
(10.5)
2.17 (55)
LED1
1.0 (25.4)
0.24 (6.4)
1.13 (28.8)
+V5
2
1
0.30 (7.62)
-V4
3
1.61 (41)
2.01 (51)
2 - M3
N2
CON1
L1
Customer Plate
0.55 (14)
0.47 (12)
0.07
(1.9)
3
4
Assembly Screw
1.13 (28.8)
2 - M3
SMPS Cover
L
0.46 (11.6)
2.62 (66.5)
L ≤ 3mm
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:
07/18/2012
(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
603-778-2300 www.wallindustries.com Fax 603-778-9797
Page 4 of 4