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 Ω 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
- 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.
- 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
- Splitters for separating DSL and telephone signals
Main features and benefits
- Low space requirement
- Good symmetry properties
- Low signal distortion
Key data
Inductance [mH]
| Resistance [Ω] | Stray inductance [μH] | Self- capacitance [pF] | Test voltage [V] | Ordering code |
| 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 |