STDA20B SERIES
20W Desktop Power Supply for I.T. Equipment
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Wide Input Voltage 90 to 264 VAC, 47 to 63Hz
IEC-320-C8 input inlet
Output Voltage Available From 5VDC Thru 48VDC
Approved as Limited Power Source (LPS), Splash Proof
Class II Insulation
Input Surge Current, Over Voltage, and Over Current Protection.
Energy Star 2.0, CEC V, and RoHS compliance
3 Year Warranty
Approvals:
Single Output
Model Number
STDA20B-S02
STDA20B-S05
STDA20B-S06
STDA20B-S08
STDA20B-S09
STDA20B-S11
Output Voltage
Max. Output Current
3.00 ~ 2.50 A
1.81 ~ 1.53 A
1.53 ~ 1.25 A
0.95 ~ 0.74 A
0.74 ~ 0.60 A
0.50 ~ 0.41 A
Total Regulation
Maximum Output Power
5 ~ 6 VDC
11 ~ 13 VDC
13 ~ 16 VDC
21 ~ 27 VDC
27 ~ 33 VDC
40 ~ 48 VDC
5%
4%
4%
3%
3%
3%
15W
20W
20W
20W
20W
20W
The output voltage under 15V had been approved by TUV/PSE.
To achieve the total regulation at per model the output cable AWG#18/4FT is adopt.
The regulation will be changed by modified output cable.
Electrical Characteristics
Parameter
Test Conditions
Operating Voltage
Min.
90
47
Typ.
Max.
264
63
Unit
VAC
Hz
W
A
A
A
A
%
Input Voltage
Input Frequency
Output Power Range
Input Current (Low Line)
Input Current (High Line)
Low Line Inrush Current
High Line Inrush Current
Efficiency
Vin=90 to 264VAC
0
20
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=230VAC
Io=Full Load
0.4
0.25
15
30
95
12
26
85
0.5
3
75
1
Line Regulation
Load Regulation
1
5
%
%
Vin=230VAC
Over Voltage Protection
Over Current Protection
Transient Response
Hold-Up Time
Nil
%
%
mS
mS
S
110
12
150
4
16
0.5
1
0.75
0.04
0.3
Io=Full Load to Half Load, Vin=100VAC
Io=Full Load, Vin=110VAC
Io=Full Load, Vin=100VAC
Full Load, Vin=90VAC
Io=Full Load, Vin=240VAC
All output
14
0.25
0.5
Start Up Time
Ripple & Noise (Peak to Peak)
Safety Ground Leakage Current
Temperature Coefficient
No-Load Power Consumption
%
0.5
mA
%/°C
W
-0.04
0
No load, Vin=240VAC
Conditions
Parameter
Operating Temperature
Storage Temperature
Relative Humidity
Test Conditions
Min.
0
-40
5
Typ.
40
Max.
70
85
Unit
°C
°C
95
%
Operation temperature at 25℃, calculated per MIL-HDBK-217F
300
KHrs
Derate linearly from 100% load at 40°C to 50% load at 70°C