TDK Corporation has extended its range of dual inductors to include the new EPCOS series B82477D6*. The seven series types cover an inductance range from 2 × 3.9 µH to 2 × 47 µH and are designed for maximum rated currents from 2.83 A to 7.05 A. A special feature of the inductors, which are certified according to AEC-Q200 and compatible with RoHS, are the high saturation currents of up to 16.1 A. The magnetically shielded inductors have dimensions of just 12.5 × 12.5 × 10.5 mm3 and are designed for a wide temperature range of -55°C to +150 °C. Depending on the type, the inductors offer very high coupling factors of the two windings from 97 to 99 percent.
The fields of application of dual inductors are diverse: Indeed, they can be used as coupled inductors in SEPIC (Single-Ended Primary Inductance Converter) or 1:1 transformers in flyback topologies. A further application involves use as a common-mode inductor in power supply lines. The isolation voltage between the two windings is >500 V.
Main fields of application
- Common-mode inductors in power supply lines
- DC/DC converters in SEPIC topology
- Flyback converters
Main features and benefits
- High saturation currents of up to 16.1 A
- Low dimensions of just 12.5 x 12.5 x 10.5 mm3
- Wide temperature range of -55°C to +150°C
- High coupling factor of up to 99 percent
Characteristics
| Order number | Inductance L1, L2 [µH] |
Max. rated current [A] |
Saturation current [A] |
DC resistance L1, L2 [mΩ] |
| B82477D6392M603 | 3.9 | 7.05 | 16.1 | 13.9 |
| B82477D6682M603 | 6.8 | 6.40 | 11.8 | 17.0 |
| B82477D6103M603 | 10 | 5.65 | 9.9 | 22.5 |
| B82477D6153M603 | 15 | 4.92 | 8.7 | 29.6 |
| B82477D6223M603 | 22 | 3.85 | 7.2 | 45.0 |
| B82477D6333M603 | 33 | 3.22 | 5.6 | 60.5 |
| B82477D6473M603 | 47 | 2.83 | 4.7 | 81.8 |