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Power Transformer Series
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Description: Transfer AC voltage 100/110/120/200/220/230/240 V to lower AC voltage. The input could be provided as single, double, triple voltage windings, output could be provided as one or severl windings. The size from EI-35 to EI 114, capacity up to 150W. Can be provided with screw mounting type, pin dipping type.
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Features:
High efficiency, low heat generation
UL recognized components
3 frames or full isolation bobbin
Full rating to choose
Low price
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Electrical Characteristics
| Input Voltage & Frequency |
UL/CSA Japan T-Mark
Europe, UK, CE
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100~127VAC 50/60Hz
220V ~ 240VAC 50Hz
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| Rated Input Power |
(Shown on the label) |
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| Exciting Current |
Depends on requirement or design |
150 mA Max. |
Output Rating
Voltage
Current / VA
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Full Load
Various (see tables) +/- 5%
Various (see tables)
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No Load
125% output voltage Max.
0 mA
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| Insulation Resistance |
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500VDC 100MΩ MIN. |
| Dielectric Strength |
Input - Output (EU version)
Input - Output (UL/CSA version)
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3.75KV for 1 minute
1.24KV for 1 minute
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| Operating Environment
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Temperature
Humidity
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-10ºC ~ 40ºC
20% - 80%
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| Storage Environment |
Temperature
Humidity
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-20ºC ~ 70ºC
20% - 90%
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| Insulation Grade |
CLASS A, E, B |
Min 105ºC. Max 130ºC |
| Temperature Rise |
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75 Deg. Max. @ rated load |
| Agency Safety |
89/36/EEC 73/23/EEC CB/CE/EN 61558-1 / IEC 61558
UL-1411
Electrical appliance and material control law of Japan
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| Efficiency |
70% Normally @ rated load |
| Protection |
Built a 115ºC or 130ºC thermal fuse on the primary winding.
Inherently limited protection or non-inherently limited (fused secondary) |
Mechanical Description:
| Core Size |
From EI-35 (UL/CSA only), 41, 48, 57, 66 to EI-114 |
| Enclosure Type |
Screw mount / Pin type / with end bell
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Power Transformers
| Section |
Reference
Schematic
(Primary)
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Reference
Schematic
(Secondary)
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Voltampere |
End Bell |
Dimension |
| Sec.1 |
A-C |
a-k |
1.575 to 6VA |
Optional |
EI-35x10 to 41x19 |
| Sec.2 |
A-C |
a-r |
4 to 10.3VA |
Optional |
EI-48x20 to 48x21 |
| Sec.3 |
A-C |
a-r |
6 to 66.1VA |
Optional |
EI-48x16 to 76x45 |
| Sec.4 |
A-C |
a-k |
4.06 to 15.3VA |
With |
EI-41x15 to 54x24 |
Applications:
Audio Equipment / Video Equipment / Battery Charger / OA Equipment / Security Systems
Double insulation transformer
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Transformer with endbells
(Horizontal type)
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Transformer without endbells
(Vertical type)
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Pin type transformer
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 E99227 UL 1411
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