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T R A N S F O R M E R S
An attention matter on use
Please read this specifications before using this product by all means.
An attention matter on security
I undertake use with this product, and it is paid attention enough, and please design an attention matter safely.
Attention on a design
When you designs a base of an electric circuit.
Please use size of the hole or pad which we recommend.
Magnetic flux to leak out occurs. Please confirm it about influence of magnetic flux beforehand.
There is fear to cause false movement of machinery.
In a design of a base of an electric circuit, Please consider the next contents.
In an applied safe standard.
The trans and distance with other parts
The product is not quakeproof structure.
Accordingly please do not add vibration and a shock to it.
There is fear to lose a function.
Attention on the handling
Please do not use it when you let a product drop.
The product produces possibility to lose a function
Please pay attention to the pin which had it pointed keenly.
There is danger to injure.
Please avoid the next place. The place that receives a drop of water, trash, the dust, foggy influence. The place where direct rays of the sun hits. There is
fear to cause false movement of machinery.
Please prohibit safekeeping and use at the next place. Environment to be accompanied with gas corrosion, salt, acid, alkali. There is fear to lose a
function.
When you carry the product on a base of an electric circuit.
Please do not use a metal tool. Because impossible power is added to a product.
There is fear to lose a function.
Attention
I considered the next matter, and we designed a product.
Safe standard and power supply voltage and circuit drive condition, drive frequency and Duty ON-TIME.
By those conditions, we decided structure and the turns number.
Please avoid use in designed condition outside.
There are destruction of a circuit part and fear of ignition.
This product considered a characteristic of a component and a self temperature rise, and it was made.
We select range of humidity as use temperature already.
Please avoid use by range more than this.
There are the damage and fear of ignition.
Please avoid use in the environment next.
The environment that trash and the dust stick to a product. There is fear to cause a fire.
The products listed on this specification sheet are intended for use in general electronic equipment (AV equipment, telecommunications equipment,
home appliances, amusement equipment, computer equipment, personal equipment, office equipment, measurement equipment, industrial robots)
under a normal operation and use condition.
The products are not designed or warranted to meet the requirements of the applications listed below, whose performance and/or quality require a more
stringent level of safety or reliability, or whose failure, malfunction or trouble could cause serious damage to society, person or property.
If you intend to use the products in the applications listed below or if you have special requirements exceeding the range or conditions set forth in this
catalog, please contact us.
(1) Aerospace/Aviation equipment
(2)Transportation equipment (cars, electric trains, ships, etc.)
(3) Medical equipment
(4) Power-generation control equipment
(5) Atomic energy-related equipment
(6) Seabed equipmentapplications
(7) Transportation control equipment
(8) Public information-processing equipment
(9) Military equipment
(10) Electric heating apparatus, burning equipment
(11) Disaster prevention/crime prevention equipment
(12) Safety equipment
(13) Other applications that are not considered general-purpose
applications
When designing your equipment even for general-purpose applications, you are kindly requested to take into consideration securing protection circuit/device
or providing backup circuits in your equipment.
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T R A N S F O R M E R S
Transformers for Switching Power Supplies
Pin terminal type (For multiple outputs)
Product compatible with RoHS directive
Compatible with lead-free solders
Development Concept of the ECO Series
The ECO series is compliant with worldwide safety standards*. It is a pin-compatible, newly developed transformer that can be downsized
and thinned.
* Applicable as of April 2007: UL/IEC/J 60065 Ver.7 (TV, DVD, STB), UL/IEC/60950 Ver.3 (printer), UL/IEC 60335-1 Ver.4 (home appliance)
MATERIAL
Optimum materials and core shape have been developed. No insulation-supporting material is used, and this secures the insulating
distance.
While optimizing materials, TDK has further improved its proprietary core shape to develop a new-type ECO core. TDK has downsized
the product considerably in order to securing the necessary creepage distance.
MANUFACTURING METHOD
Since the ECO Series supports automatic winding, the product is of a high quality and can be manufactured stably.
It is designed to support automatic winding, which enables a remarkable reduction in the loss generated to achieve a proficient in
manual winding until stable production.
OPTIMIZATION DESIGN
Using design tools developed with TDK’s comprehensive know-how, high-precision design has been achieved in a short period of time.
1) For optimization design and high-quality stable production, customers can use a specification request form.
2) If you provide the necessary information in the form, you will receive the optimization design in a short time.
3) We have prepared an individual specifications request document for the home appliance market.
4) TDK recommends design with a standard core gap (AL-value) for optimization and shorter trial and mass production lead time.Plans
for standard winding connection (patterns of recommended pin arrangement and winding structure) are available.These help to
speed up the design process, support automatic winding, and prevent deterioration in quality.
ENVIRONMENT
The ECO series is RoHS directive-compliant.
Please be sure to request delivery specifications that provide further details on the features and specifications of the products for proper and safe use.
Please note that the contents may change without any prior notice due to reasons such as upgrading.
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T R A N S F O R M E R S
Transformers for Switching Power Supplies
Pin terminal type (For multiple outputs)
Product compatible with RoHS directive
Compatible with lead-free solders
Overview of the ECO Series
FEATURES
Downsized yet compliant with worldwide safety standards.
Supports automatic winding.
Considerably reduced characteristic variations.
Product compatible with RoHS directive.
APPLICATION
Set-top boxes, air-conditioners, DVD players/recorders
Blu-ray disc players/recorders, printers, LCD monitors
Multiple-output power supplies
PART NUMBER CONSTRUCTION
ECO
Series name
2017SEO -
□□□□□□□□
Core shape
Internal code
OPERATING TEMPERATURE RANGE, PACKAGE QUANTITY, PRODUCT WEIGHT
Type
Temperature range
Operating
Storage
temperature
temperature
Humidity range
Operating humidity Storage humidity
range
range
（%RH）
10 to 95
10 to 95
10 to 95
10 to 95
10 to 95
10 to 95
10 to 95
10 to 95
10 to 95
（%RH）
10 to 95
10 to 95
10 to 95
10 to 95
10 to 95
10 to 95
10 to 95
10 to 95
10 to 95
Standard test conditions
Ambient
Relative humidity
range
temperature
（°C）
25 ± 10
25 ± 10
25 ± 10
25 ± 10
25 ± 10
25 ± 10
25 ± 10
25 ± 10
25 ± 10
（%RH）
25 to 75
25 to 75
25 to 75
25 to 75
25 to 75
25 to 75
25 to 75
25 to 75
25 to 75
（°C）
（°C）
ECO2017
-30 to +120
-40 to +80
ECO2020
-30 to +120
-40 to +80
ECO2023
-30 to +120
-40 to +80
ECO2219
-30 to +120
-40 to +80
ECO2225
-30 to +120
-40 to +80
ECO2230
-30 to +120
-40 to +80
ECO2420
-30 to +120
-40 to +80
ECO2425
-30 to +120
-40 to +80
ECO2430
-30 to +120
-40 to +80
With self-heating
Maximum wet-bulb temperature 38°C, without dewing
Without dewing
RoHS Directive Compliant Product: See the following for more details.https://product.tdk.com/info/en/environment/rohs/index.html
Please be sure to request delivery specifications that provide further details on the features and specifications of the products for proper and safe use.
Please note that the contents may change without any prior notice due to reasons such as upgrading.
20161228 / trans_ac_dc-converter_eco_en.fm
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