1J66 constant magnetic permeability alloy

1J66 main characteristics - Examples of applications: Constant permeability soft magnetic alloy. It is used in the manufacture of constant inductance components because of the small change in permeability over a wide range of magnetic fields, temperatures and frequencies.

1J66 is mainly used for magnetic amplifiers, current resistors, rectifier coils, and computer device components that operate in medium magnetic fields. Zero-sequence current transformers, power converters, precision current transformers. Power transformers, chokes, pulse transformers. Variable polarity pulse transformers, DC voltage converters, magnetic amplifiers, magnetic modulators. Constant inductance components, unipolar pulse transformers. Iron-nickel alloys with a nickel content of 30% to du90% are often called Permalloy. Within this composition range, soft magnetic alloys with different magnetic properties such as high permeability, constant permeability and constant moment magnetism can be obtained by adding the right amount of alloying elements and using the appropriate process. Permalloy has high plasticity and can be cold-rolled into ultra-thin strips of 1μm, which is a class of soft magnetic alloys with wide fields of use. It can be used as cores and shields in weak magnetic fields, pulse transformers and inductor cores with low remanence and constant permeability, high rectangular ratio alloys, thermomagnetic compensation alloys and magnetostrictive alloys. Its disadvantage is that it is expensive and has high losses when used in ultra-high frequency magnetic fields.