PSSBU120 Series
120 Watt, Open Frame
Single, Dual, and Triple Outputs
AC/DC Switching Power Supply for I.T.E.
Rev C
FEATURES
● 100% Burn In
● Class I Insulation
● Internal EMI Filter
● Power Factor Correction
● Power Fail Detect (Optional)
● Wide Input Voltage Range: 90~264VAC
● Over Voltage Protection (Crowbar Design)
● Output Voltages Available from 3VDC thru 50VDC
● Input Surge Current, Over Voltage, and Over Load Protection
DESCRIPTION
The PSSBU120 series of AC/DC switching mode power supplies provides 120 Watts of continuous output power in a compact,
open frame constructed design. This series has a universal input range with single, dual, or triple outputs. These units are ideally
suited for use in CRT terminals, disc drive systems, microprocessor based systems, portable equipment, and many other
applications. All models meet FCC Part-15 class B and CISPR-22 class B emission limits. These supplies also comply with UL/cUL
(UL 60950)(4), TUV/GS (EN 60950), and new CE requirements. All units are 100% burn-in tested.
SPECIFICATIONS: PSSBU120 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
INPUT (Vin)
TEST CONDITIONS
Min
Nom
Max
Unit
Operating Voltage Range
Input Frequency
90
47
264
63
1.7
1.0
20
51
0.75
2
VAC
Hz
A
A
A
A
mA
s
Input Current (Low Line)
Input Current (High Line)
Inrush Current (Low Line)
Inrush Current (High Line)
Safety Ground Leakage Current
Start-Up Time
Io = Full Load, Vin = 115VAC
Io = Full Load, Vin = 230VAC
Io = Full Load, 25°C, Cool Start, Vin = 115VAC
Io = Full Load, 25°C, Cool Start, Vin = 230VAC
Io = Full Load, Vin = 240VAC
16
46
0.4
1
Io = Full Load, Vin = 100VAC
0.3
OUTPUT (Vo)
Output Voltage Range
Load Regulation
Line Regulation
See Rating Chart
Vin = 230VAC
Io = Full Load
Vin = 90 to 264VAC
3
0.5
5
1
%
%
W
Output Power
120
Output Current Range
*Ripple & Noise (peak to peak)
Transient Response
Hold-Up Time
See Rating Chart
Full Load, Vin = 90VAC
Io = Full Load to Half Load, Vin = 100VAC
Io = Full Load, Vin = 110VAC
0.5
1
4
%
ms
ms
16
PROTECTION
Over Voltage Protection
Over Current Protection
GENERAL
112
110
132
150
%
%
Efficiency
Io = Full Load, Vin = 230VAC
70
80
88
%
Dielectric Withstanding Voltage
For Primary to Secondary
Dielectric Withstanding Voltage
For Primary to Ground
Isolation Resistance
Power Factor Correction
ENVIRONMENTAL
Operating Temperature
Storage Temperature
Relative Humidity
Primary to Secondary
4242
VDC
Primary to Ground
2121
VDC
MΩ
Test Voltage = 500VDC
Io = Full Load, Vin = 90~260VAC
50
0.95
0.97
1.0
Derate linearly from 100% Load at 50°C to 50% load at 70°C
0
-40
5
+70
+85
95
°C
°C
%
Temperature Coefficient
MTBF
All Outputs
-0.04
+0.04
%/°C
hours
Operating temperature at 25°C, calculated per MIL-HDBK-217F
100,000
PHYSICAL
Weight
Approximately 350 ~ 428 grams
5.0 x 3.0 x 1.32 inches
Dimensions (L x W x H)
127 x 76.2 x 33.6 mm
SAFETY
EMI Requirements for CISPR-22
EMI Requirements for FCC PART-15
Safety
Vin = 220VAC
Vin = 110VAC
EN60950:A2
B
B
Class
Class
*Note: The Ripple & Noise for output voltages under 3.3VDC is 2% max.
Wall Industries, Inc. • Tel: 603-778-2300 • Toll Free: 888-597-9255 •
website: www.wallindustries.com • e-mail: sales@wallindustries.com
7/29/2019
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