Splitter Transformers target DSL applications.September 8, 2010 -
Splitter transformers for separating DSL and telephone signals are available in 8 inductance values ranging from 1-10 mH and with resistance of 0.8-20 W, stray inductance of 0.7-13 µH, self-capacitance of 33-45 pF, and test voltage of 800-1,500 V. Measuring 9.6 x 7.8 x 10.9 mm³, units include EP7 cores and are RoHS-compatible.
(Archive News Story - Products mentioned in this Archive News Story may or may not be available from the manufacturer.)
Original Press release
Epcos, Inc.
186 Wood Ave. S.
Iselin, NJ, 08830
USA
Inductors: Standard Series of Transformers for DSL Splitters
TDK-EPC, a group company of the TDK Corporation, presents a new standard series of splitter transformers from EPCOS for DSL applications. The series comprises 8 inductance values ranging from 1 to 10 mH.
Thanks to their dimensions of only 9.6 x 7.8 x 10.9 mm³, the new transformers with EP7 cores permit highly space-saving designs. In addition to good symmetry properties, the components are distinguished by very low signal distortions. Their low DC resistance, which is between 0.8 and 20 W depending on the type, ensures minimal losses. The transformers are RoHS-compatible.
In addition to the new standard series, TDK-EPC continues to supply customer-specific transformers with corresponding cores and inductance values. TDK-EPC also offers film capacitors used in the design of splitters.
Glossary
o DSL: Digital Subscriber Line. DSL designates a series of standards for the high-speed transmission of data between the subscriber and the exchange via twisted copper pairs.
o Splitters: Systems comprising transformers and capacitors used to separate the telephone and DSL signals. Splitters are needed both at the subscriber access and the exchange.
Main applications
o Splitters for separating DSL and telephone signals
Main features and benefits
o Low space requirement
o Good symmetry properties
o Low signal distortion
Key data
Inductance Resistance Stray Self- Test Ordering code
Inductance capacitance voltage
[mH] [W] [µH] [pF] [V]
1.0 0.8 0.7 33 1500 B82803A0105A007
1.5 1.4 1.4 37 1500 B82803A0155A007
2.2 2.4 2.7 40 1500 B82803A0225A007
2.7 3.6 2.9 45 1500 B82803A0275A007
3.3 5.0 4.0 45 1000 B82803A0335A007
4.7 5.8 5.3 45 1000 B82803A0475A007
6.8 9.8 10 45 1000 B82803A0685A007
10 20 13 45 800 B82803A0106A007
About TDK-EPC Corporation
TDK-EPC Corporation (TDK-EPC), a TDK group company, is a leading manufacturer of electronic components, modules and systems headquartered in Tokyo, Japan. TDK-EPC has emerged from the combination of the electronic components business of TDK and the EPCOS Group and markets its products under the product brands, TDK and EPCOS.
The product portfolio includes ceramic, aluminum electrolytic and film capacitors, ferrites and inductors, high-frequency components such as surface acoustic wave (SAW) filter products and modules, piezo and protection components, and sensors. With this product spectrum TDK-EPC offers a broad range of products and solutions of outstanding value from a single source and focuses on demanding markets in the areas of information and communication technology and automotive, industrial and consumer electronics. The company has design and manufacturing locations and sales offices in Asia, Europe, and in North and South America.
Further information on the products can be found under www.epcos.com/xdsl
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