New EPCOS stackable U-cores from TDK feature a unique modular ferrite design that offers flexibility and economy for high-voltage transformer and high-frequency (HF) filter applications. These cores were developed in partnership with US-based Dexter Magnetic Technologies and are available as Dexter StackPack U-Cores.
The cores provide standard options that can fit a wide range of needs, representing a major advantage in applications that require large ferrite cores but are limited by manufacturing constraints and high tooling costs. As a result, designers need not cut and glue large U and I cores together to make them bigger – an approach that is not only imprecise but also expensive.
The standardised design of the StackPack U-Cores enables multiple configurations as well as lower costs than custom tooling or machining. With short lead times, Dexter Magnetic Technologies can supply standard modular cores that allow rapid prototyping.
The ferrite can be expanded with just three parts: a corner piece, legs and spacers. Holes permit insertion of a threaded rod, after which the assembly is screwed together. This modular design allows engineers to increase ferrite height or width as required.
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