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1.Features:
- Fully-encapsulated printed circuit board being able to be directly welded
and assembled.
Perfect outline;
- Low mounting height, compact in structure, solid, vibration-proof, moisture-proof,
flame-resistant and high insulation withstand voltages;
- Easy to use and reconfigure: alternative input/output voltages can be obtained
by changing connections of primary and/or secondary;
- Built-in temperature protector, safer in application
2.Ambient Conditions:
- Ambient temperature: -25...+70°C;
- Relative humid <90% 40°C;
- Atmospheric pressure: 860~1060mbar (650~800mmHg approximately);
3.Insulation Rating: Class F (155°C).
4.Safety features:
- Dielectric resistance: >1000M in normal condition;
- Insulation withstand voltages: 3750V (50HZ)/1 min;
- Insulation impact strength: Continuously 20 times impact of 6KV (50HZ)/50mS;
- Fire retardancy: In conformity with UL94-Vo.
5. Rated Power: 18VA
6. Rated Voltage:
1) Standard series:
Primary: 220V±25% 50Hz/60Hz
Secondary: 2x6V, 2x7.5V, 2x9V, 2x12V, 2x15V, 2x18V, 2x21V, 2x24V, 2x27V
2) Non-standard series: It can be customized based on customer's requirements.
7. Universal Technical Parameters of S Series Standard Product:
| No. |
Model |
Power |
Idle
Current |
Idle
Loss |
Voltage
Regulation
Ratio |
Temperature
Rise |
Weight
(g) |
Dimension
LxWxH
(mm3) |
| 1 |
S0.25 |
0.25VA |
<2.5mA |
<0.10W |
<26% |
<10°C |
40 |
26x22.5x23 |
| 2 |
S0.35L |
0.35VA |
<3.5mA |
<0.20W |
<45% |
<10°C |
40 |
32.6x27.6x16 |
| 3 |
S0.5 |
0.5VA |
<4.5mA |
<0.30W |
<30% |
<10°C |
50 |
26x22.4x26 |
| 4 |
S0.6 |
0.6VA |
<3.0mA |
<0.12W |
<38% |
<11°C |
60 |
30.5x27.5x20.5 |
| 5 |
S0.8 |
0.8VA |
<4.0mA |
<0.20W |
<20% |
<12°C |
75 |
30.5x27.5x25 |
| 6 |
S1 |
1VA |
<4.5mA |
<0.15W |
<20% |
<12°C |
75 |
30.5x27.5x25 |
| 7 |
S1L |
1VA |
<8.0mA |
<0.17W |
<23% |
<12°C |
75 |
32.6x27.6x22.2 |
| 8 |
S1.2 |
1.2VA |
<7.0mA |
<0.25W |
<16% |
<15°C |
100 |
30.5x27.5x31.25 |
| 9 |
S1.3L |
1.3VA |
<7.5mA |
<0.26W |
<17% |
<15°C |
110 |
43x35x22 |
| 10 |
S1.5 |
1.5VA |
<7.5mA |
<0.20W |
<17.5% |
<15°C |
100 |
30.5x27.5x31.25 |
| 11 |
S1.5L |
1.5VA |
<8.0mA |
<0.35W |
<12.5% |
<15°C |
125 |
43x35x24.5 |
| 12 |
S2 |
2VA |
<7.5mA |
<0.20W |
<15% |
<15°C |
125 |
37.5x32x31 |
| 13 |
S2L |
2VA |
<8.5mA |
<0.35W |
<15% |
<15°C |
135 |
44x36x26.5 |
| 14 |
S2S |
2VA |
<12mA |
<0.25W |
<21% |
<15°C |
135 |
32.6x27.6x31.25 |
| 15 |
S3 |
3VA |
<8.0mA |
<0.25W |
<15% |
<15°C |
155 |
37.5x32x35 |
| 16 |
S4 |
4VA |
<16mA |
<0.50W |
<13% |
<18°C |
195 |
45x37x33 |
| 17 |
S5 |
5VA |
<18mA |
<0.35W |
<13% |
<18°C |
195 |
45x37x33 |
| 18 |
S8 |
8VA |
<20mA |
<0.80W |
<20% |
<18°C |
275 |
51x43x33.8 |
| 19 |
S10 |
10VA |
<20mA |
<0.65W |
<15% |
<20°C |
300 |
51x43x36 |
| 20 |
S12 |
12VA |
<20mA |
<0.50W |
<15% |
<20°C |
300 |
51x43x36 |
| 21 |
S15 |
15VA |
<28mA |
<0.70W |
<11% |
<22°C |
415 |
58.5x49x40 |
| 22 |
S18 |
18VA |
<28mA |
<0.60W |
<10% |
<22°C |
415 |
58.5x49x40 |
8.Outline, Installation Dimension and Detailed Technical Parameters of S18
Series Standard Product
| Primary pins |
Primary voltage |
Frequency |
Primary current |
| Rating |
Max. |
Idle |
Full load |
| 1-6 |
220V |
275V |
50Hz /60Hz |
<28mA |
<95mA |
| Model |
Windings |
Secondary voltage |
Secondary
current
(mA) |
Secondary
Pins |
Equivalent
internal
resistance
() |
| Idle |
Full load |
| S18-01 |
 |
6.8V |
6V |
3000 |
9-13 |
0.3 |
| S18-01B |
8.4V |
7.5V |
2400 |
0.45 |
| S18-02 |
10V |
9V |
2000 |
0.65 |
| S18-03 |
13.4V |
12V |
1500 |
1.2 |
| S18-04 |
16.6V |
15V |
1200 |
1.8 |
| S18-05 |
20V |
18V |
1000 |
2.6 |
| S18-05B |
23.3V |
21V |
857 |
3.6 |
| S18-06 |
26.5V |
24V |
750 |
4.8 |
| S18-06B |
30V |
27V |
667 |
6 |
| S18-07 |
 |
2x6.8V |
2x6V |
2x1500 |
8-9
13-14 |
2x0.6 |
| S18-07B |
2x8.4V |
2x7.5V |
2x1200 |
2x0.9 |
| S18-08 |
2x10V |
2x9V |
2x1000 |
2x1.3 |
| S18-09 |
2x13.4V |
2x12V |
2x750 |
2x2.4 |
| S18-10 |
2x16.6V |
2x15V |
2x600 |
2x3.6 |
| S18-11 |
2x20V |
2x18V |
2x500 |
2x5.2 |
| S18-11B |
2x23.3V |
2x21V |
2x428 |
2x7.2 |
| S18-12 |
2x26.5V |
2x24V |
2x375 |
2x9.6 |
| S18-12B |
2x30V |
2x27V |
2x333 |
2x12 |
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