VAC now offers nanocrystalline c-cores made from the unique VITROPERM tape. Applications are power transformers in converters for drives or switched mode power supplies, welding converters or converters for inductive heating.
Advantages of nanocrystalline c-cores are low losses, high induction and low noise when operating at accoustic frequencies due to the low magnetostriction.
|Saturation flux density||Bs = 1.2 T|
|Coercivity (static)||Hc < 3 A/m|
|Saturation magnetostriction||λs = 10-8….10-6|
|Electrical resistivity||ρ ~ 115 μΩcm|
|Curie temperature||Tc > 580 °C|
|Material permeability||μi = 20000... 50000*|
|Core losses (2500Hz, 0.5 T)||PFe ≤ 1 W/kg*|
|Tape thickness||approx. 18 μm|
|Material composition||(FeSi)89(BNbCu)11 At.-%|
|* Measured with toroidal cores w/o air gap|