Specifications
Â
3 Year Warranty |
 |
Approvals: |
Â
Single Output |
||||
Model Number |
Range of Fixed Voltage |
Max. Output Current |
Total Regulation |
Maximum Output Power |
STDA21C-S02 |
5 ~ 6 VDC |
3.00 ~ 2.50 A |
±5% |
15W |
STDA21C-S03 |
6 ~ 8 VDC |
2.30 ~ 1.87 A |
±5% |
15W |
STDA21C-S04 |
8 ~ 11 VDC |
2.50 ~ 1.81 A |
±5% |
20W |
STDA21C-S05 |
11 ~ 13 VDC |
1.81 ~ 1.53 A |
±4% |
20W |
STDA21C-S06 |
13 ~ 16 VDC |
1.53 ~ 1.25 A |
±4% |
20W |
STDA21C-S08 |
21 ~ 27 VDC |
0.95 ~ 0.74 A |
±3% |
20W |
STDA21C-S09 |
27 ~ 33 VDC |
0.74 ~ 0.60 A |
±3% |
20W |
STDA21C-S10 |
33 ~ 40 VDC |
0.60 ~ 0.50 A |
±3% |
20W |
 STDA21C-S11 |
40 ~ 48 VDC |
0.50 ~ 0.41 A |
±3% |
20W |
STDA21C-S02~S07 are required to use AWG#18 / 4FT output cable. STDA21C-S08~S11 are required to use AWG#20 / 4FT output cable. The regulation and efficiency will be changed by modified output cable. |
Â
Electrical Characteristics |
|||||
Parameter |
Test Conditions |
Min. |
Typ. |
Max. |
Unit |
Safety Approvals Input Voltage Range |
Safety Approval & Specification in Label |
100 |
 |
240 |
VAC |
Operate Voltage Range |
 |
90 |
 |
264 |
VAC |
Input Frequency |
Sine wave |
47 |
 |
63 |
Hz |
Output Power Range |
See Rating Chart |
 |
 |
20 |
W |
Low Line Input Current |
Full load, Vin=100VAC |
 |
0.5 |
 |
A |
High Line Input Current |
Full load, Vin=240VAC |
 |
0.2 |
 |
A |
Low Line Input Inrush Current |
Full load, 25°C, Cool start, Vin=100VAC |
25 |
 |
50 |
A |
High Line Input Inrush Current |
Full load, 25°C, Cool start, Vin=240VAC |
50 |
 |
120 |
A |
Safety Ground Leakage Current |
Vin=240VAC, Fi=60Hz |
 |
 |
0.75 |
mA |
Efficiency |
Full Load, Vin=230VAC |
81.4 |
 |
87 |
% |
Line Regulation |
Full Load, Vin=100~120VAC |
0.5 |
 |
1 |
% |
Load Regulation |
Vin=230VAC, 10~90% Load Change at Condition |
3 |
 |
5 |
% |
Over Load Protection |
Nil. But, Output protected to short circuit conditions |
||||
Time of Transient Response |
Io=Full Load to Half Load, Vin=110VAC |
 |
 |
4 |
ms |
Hold-Up Time |
Full Load, Vin=100VAC |
 |
 |
8 |
ms |
Start Up Time |
Full Load, Vin=100~240VAC |
 |
 |
3 |
s |
Ripple & Noise (Peak to Peak) |
 |
 |
 |
1 |
% |
Temperature Coefficient |
Full Load, Vin=100~240VAC |
 |
 |
±0.04 |
%/°C |
Dielectric Withstanding Voltage(P-S) |
Primary to Secondary |
 |
 |
4242 |
VDC |
Dielectric Withstanding Voltage(P-G) |
Primary to PE |
 |
 |
2121 |
VDC |
EMC Emission |
Compliance to EN55022(CISPR22) |
 |
 |
B |
Class |
Â
Â
Environmental |
|||||
Parameter |
Test Conditions |
Min. |
Typ. |
Max. |
Unit |
Operating Temperature |
Derate linearly from 100% load at 40â to 50% load at 70â |
0 |
 |
70 |
°C |
Storage Temperature |
 10~95% RH |
-40 |
 |
85 |
°C |
Operating Humidity |
 non-condensing |
0 |
 |
95% |
RH |
Storage Humidity |
 |
0 |
 |
95% |
RH |
Electro Static Discharge |
Air Discharge, IEC61000-4-2 |
 |
 |
8 |
KV |
Electro Static Discharge |
Contact Discharge, IEC61000-4-2 |
 |
 |
4 |
KV |
Mean Time Between Failure |
Operation Temperature at 25â, Calculated per MIL-HDBK-217F |
100K |
 |
 |
h |
Operating Altitude (Elevation) |
All Condition |
 |
 |
2000 |
m |
Vibration |
10~500Hz,10min./1cycle, 60min.each along X, Y, Z axes |
 |
 |
5 |
G |
Surge Voltage |
 Line-Neutral |
 |
 |
1 |
KV |
Surge Voltage |
 Line-PE & Neutral-PE |
 |
 |
2 |
KV |
Â
Mechanical Diagram and Derating Chart |
Note:
|
|
Note: 1. Operating Temperature: 0 to 70°C 2. Derate linearly from 100% load at 40°C to 50% load at 70°C |
Â
Datasheet PDF
Â
Â