Passive Components


Magnetic cores

12 August 2015 Passive Components

Magnetics now offers its XFLUX distributed air gap cores in 50 x 30 mm (00X5030Bxxx), 60 x 30 mm (00X6030Bxxx), 70 x 30 mm (00X7030Bxxx) and 80 x 30 mm (00X8030Bxxx) versions, with permeabilities of 26, 40 and 60.

These cores offer an economical, high saturation (1,6 T) solution for use in low-and medium-frequency inductors and chokes. The high saturation is advantageous in applications where inductance under load is critical, such as inverters for renewable energy and uninterruptible power supplies.

XFLUX cores are made from 6,5% silicon iron powder – a high-temperature material that exhibits no thermal ageing. Their material properties and the flexibility of their geometries make them ideal for custom assembly. Discrete air gaps between XFLUX blocks are not generally needed because the air gap is inherent in the material. At the same time, extremely smooth mating surfaces (such as are employed with ferrites) are not required because the small incidental gap between blocks does not add appreciable extra gap and does not reduce inductance significantly.

The adhesives used for assembling XFLUX blocks generally need to be thicker than those commonly used for ferrite assemblies, since their surface is rougher and more porous. Cores may require a double application of adhesive to allow for the porosity in the surface of the blocks.

For more information contact Mantech Electronics, +27 (0)11 493 9307, sales@mantech.co.za, www.mantech.co.za



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