PSAFC20 SERIES
Up to 20 Watts
AC/DC Switching Power Supplies
Single Output
Rev D
FEATURES
• Isolation Class II
• Low Standby < 0.5W
• Up to 20 Watts Output Power
• Regulated Single Outputs
• Low Ripple & Noise
• PCB Mountable Switching Power Supply
• Universal Input Range: 90-264VAC (120-370VDC)
• Short Circuit, Over Power, & Over Voltage Protection
• UL/cUL, CE, and CB Safety Approvals
• MTBF > 400,000 Hours
• Fully Encapsulated Plastic Case
• Two Screw Terminal Mechanical Options Available
DESCRIPTION
The PSAFC20 series of AC/DC switching power supplies provides up to 20 Watts of output
power in a 2.07” x 1.08” x 0.93” encapsulated PCB mountable package. This series consists of
single output models with a universal input range of 90-264VAC (120-370VDC). Some features
include low ripple and noise, -40°C to +70°C operating temperature range, and over power, over
voltage, and short circuit protection. The PSAFC20 series also has two types of screw terminal
mechanical options available. All models have UL/cUL, CB, and CE safety approvals.
Size:
Weight:
2.08oz (59g)
2.07 x 1.08 x 0.93 inches
52.5 x 27.5 x 23.5 mm
MODEL SELECTION TABLE
Output Current
Min Load Max Load
Ripple & Noise (1)
Output
Output
Power
Maximum
Capacitive Load
Model Number Input Voltage
PSAFC20-3.3S
Efficiency
Voltage
3.3 VDC
5 VDC
12 VDC
15 VDC
24 VDC
Ripple
Noise
0%
0%
0%
0%
0%
3600mA
3600mA
1660mA
1330mA
833mA
75mVp-p 120mVp-p 11.88W
75mVp-p 120mVp-p
74%
78%
82%
83%
83%
4500µF
3500μF
470μF
330μF
47μF
PSAFC20-5S
PSAFC20-12S
PSAFC20-15S
PSAFC20-24S
18W
20W
20W
20W
90~264 VAC
(120~370
VDC)
1% Vout
1% Vout
1% Vout
1% Vout
1% Vout
1% Vout
SPECIFICATIONS: PSAFC20 SERIES
All specifications are based on 25°C After Warm-Up Time, Normal Input Voltage, and Full Load unless otherwise noted.
We reserve the right to change specifications based on technological advances.
SPECIFICATION
TEST CONDITIONS
Min
Typ
Max
Unit
INPUT SPECIFICATIONS
AC input voltage range
DC input voltage range
90
120
47
264
370
440
385
250
20
VAC
VDC
Hz
Input Voltage
Input Frequency
Input Current
At 115VAC and full load
At 230VAC and full load
At 115VAC, <2 ms, cold start
At 230VAC, <2ms, cold start
mA
Inrush Current
A
40
External Fuse (required)
OUTPUT SPECIFICATIONS
Output Voltage
Voltage Accuracy
Line Regulation
2A slow blow type
See Table
+2
-2
-0.5
-1
%
%
%
Low line to high line
5% - 100% load
+0.5
+1
Load Regulation
Output Power
Output Current
See Table
See Table
Minimum Load
0
%
Ripple & Noise
Maximum Capacitive Load
See Table
See Table
12
At 115VAC
At 230VAC
Hold-Up Time
ms
56
Temperature Coefficient
PROTECTION
-0.02
+0.02
%/°C
Short Circuit Protection
Over Voltage Protection
Over Power Protection
Hiccup mode, indefinite
Hiccup technique
Auto-recovery
Zener diode clamp
Auto-recovery
Wall Industries, Inc. • Tel: 603-778-2300 • Toll Free: 888-597-9255 •
website: www.wallindustries.com • e-mail: sales@wallindustries.com
9/23/2019
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