Coupled inductors are automotive certified

July 28, 2021 // By Christoph Hammerschmidt
Coupled inductors are automotive certified
TDK has expanded its portfolio of coupled inductors with the new Epcos B82472D6 series. A special feature of the AEC-Q200 qualified and RoHS-compatible chokes are the high saturation currents of up to 7.95 A.

The nine types of the series cover an inductance spectrum from 2 x 2.2 µH to 2 x 47 µH and are designed for maximum rated currents from 1.1 A to 4.3 A. The magnetically shielded inductors have dimensions of only 7.3 x 7.3 x 4.8 mm3 and are designed for a wide temperature range from -55 °C to +150 °C. Depending on the type, the chokes offer very high coupling factors of the two windings of 97 to 99 percent.

The application possibilities for these compact and robust components are manifold: they are ideally suited in various galvanically non-isolated DC/DC converter topologies such as SEPIC, Cuk and Zeta or can be used as transformers in flyback as well as in multi-output buck topologies. In the latter application, the coupled inductor serves to provide a second output voltage. The function as a common-mode choke in power supply lines is another field of application. The insulation voltage between the two windings is >500 V.

www.tdk-electronics.tdk.com/de/power_inductors


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