Service hotline：86-029-89186965
ENGLISH 
CHINESE
Service hotline：86-029-89186965 ENGLISH CHINESE
WO series Power Supply is a small volume open frame switching power supply designed and produced by W&H-GAMAY. The power from 10W to 100W. It has the advantage of ultra-wide input voltage range, low power consumption, high efficiency, high reliability, high safety isolation, and excellent EMC performance.
Product introduction
Product Parameter
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Model Item |
WO20A-220S03T |
WO20A-220S05T |
WO20A -220S09T |
WO20A -220S12T |
WO20A -220S15T |
WO20A -220S18T |
WO20A -220S24T |
WO20A -220S36T |
WO20A -220S48T |
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Input |
Voltage Range（VAC） |
85-700 |
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Frequency（Hz） |
47～63 |
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Current (MAX)（Arms） |
1.4 |
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Inrush Current(MAX)（A） |
40 (under Cool Start) |
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Power Factor（Typ） |
≥0.91 |
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Output |
Power（W） |
3.3 |
5 |
9 |
12 |
15 |
18 |
24 |
36 |
48 |
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voltage（V） |
6.00 |
4.00 |
2.20 |
1.67 |
1.33 |
1.11 |
0.83 |
0.56 |
0.42 |
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Current （A） |
70% |
70% |
71% |
72% |
721% |
75% |
75% |
77% |
77% |
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Efficiency（Typ） |
±3% |
±3% |
±3% |
±3% |
±3% |
±3% |
±3% |
±3% |
±3% |
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Voltage Tolerance |
120 |
120 |
150 |
150 |
150 |
150 |
150 |
150 |
150 |
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Voltage Ripple & noise（mVp-p） |
±3% |
±3% |
±3% |
±3% |
±3% |
±3% |
±3% |
±3% |
±3% |
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Load regulation |
≤100 |
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Protection |
over load |
Over rated power 105-150% |
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Hiccup mode protection, automatically resume work if overload comes to rated load. |
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over/under voltage |
3.5～3.8 |
5.3～5.8 |
9.5～10.4 |
12.6～13.8 |
15.8～17.3 |
18.9～20.7 |
25.2～27.6 |
37.8～41.4 |
50.4～55.2 |
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Turn-off output, restart to restore normal |
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over heat |
Turn-off output, after temperature recovery，restart to restore normal |
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Working Environment |
Working Temp.（℃） |
-20～85 |
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Storage Temperature（℃） |
-40～85 |
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Operating Humidity |
10～90%RH, No condensation |
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Altitude（m） |
≤3000 |
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Others |
Test Voltage |
Input-output withstand 3KVAC, test time: 60s, Leakage current less than 5mA |
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Insulation Resistance |
Input-output, insulation voltage 500VDC, Insulation resistance 100MΩ（25℃、Relative Humidity 95%） |
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Overall Dimension |
60x35x30mm |
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Weight |
0.15Kg |
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Remarks
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1. Ripple and noise measurement: Use twisted pair wire, connect 0.1uF and 47uF capacitors at the terminal, and measure under the condition of 20MHz oscilloscope bandwidth; 2. Voltage Accuracy: including setting error and load regulation; 3. Standard configuration of structural size of plugs and wiring, it’s also can be customized. 4. Fuse: For safety reasons, the module input must be connected to the fuse. The recommended specification for WA5P is 1A/250V, WA10P-WA15P is 2A/250V, and WA20P-WA40P is 3.15A/250V. |
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