TDK Corporation (Tokyo Stock Exchange code: 6762) has launched the high-performance EPCOS ERUC23 series components (B82559S *), expanding its SMD coupling inductor product portfolio. Coupling inductor refers to an inductor where two coils share a magnetic core. The ERUC23 series comes in six models to choose from, all of which use flat wire windings; The inductance range of the coupling inductance is 1.4 µ H to 4.1 µ H, the saturation current range is 50 A to 97 A, and the DC impedance of a single coil is 0.82 m Ω to 1.85 m Ω; The board size of the product is only 26.8 x 13.8 mm ²， The height ranges from 13.7 mm to 14.0 mm, and the operating temperature range is -40 ° C to+150 ° C. This series of products comply with AEC-Q200 and RoHS standards, and the product design is suitable for fully automatic mounting machines.
Coupling inductors have a wide range of applications, suitable for single and dual phase up and down converters (especially suitable for interleaved voltage converters that convert 48 V to 12 V). The product is designed with two coil coupling to reduce ripple current and improve conversion efficiency. Compared to the design using two independent inductors, the ERUC23 series coupled inductors can significantly reduce board space.
Characteristics and Applications
Main applications
Single and dual phase up/down converters
48 V to 12 V interleaved converter (flying capacitor converter)
Main features and advantages
• High saturation current
• Low DC impedance
Fully automatic placement machine placement
Compact packaging with lower ripple current and higher efficiency
Key data
For more information on this product, please visit https://www.tdk-electronics.tdk.com/en/eruc23
Karmin Electronic (HK) Limited 
Hong Kong Tel:852-39070580 96557277
Hong Kong Fax:852-39070581
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Hong Kong address: Room 6, 11th floor, Huali industrial center, 10 - 14guidi street, Fo Tan, New Territories, Hong Kong