MPP cores are ring cores that are made of material containing 79% of nickel, 17% of iron and 4% of molybdenum powder and having a smallest losses among all powder materials. Main advantages of MPP cores are high specific resistance, low values of hysteresis and eddy currents, high stability of inductance following a magnetization by high current. High temperature and time stability of magnetic permeability versus temperature make these cores irreplaceable for production of high-precision inductance coils operating in wide temperature range. In usual storage conditions, a variation of core’s inductance will not exceed 0.05%.
High Flux cores are made of material containing 50% of nickel and 50% of powder iron and have a higher saturation magnetic flux density as compared with other powder materials. High Flux have a series of advantages that permit to recommend these cores for applications requiring high power, high magnetic biasing by direct or alternating current at high frequencies. High Flux’s saturation magnetic flux density is 1.5 T what is considerably higher than 0.75 T for standard MPP cores or 0.45 T for ferrite cores. High Flux cores have losses that are considerably lower than losses of powder iron cores. In most applications, a use of High Flux cores provides a significant size reduction of wrap-in products as compared with other cores made of powder materials.
Kool Mµ cores are made of iron-aluminium alloy and are characterized by low losses at higher frequencies. Near-to zero magnetostriction makes Kool Mµ cores ideally suitable for suppression of acoustic noises in filters. Kool Mµ cores have considerably lesser losses than cores made of material based on spayed iron and provide a size reduction of wrap-in products and a decreased value of temperature jumps as compared with last-mentioned. Owing to a low cost, Kool Mµ cores are extensively used worldwide in circuits of power supplies.
XFLUX cores that are made of material not containing high-priced nickel and therefore are not expensive, combine such characteristics which were earlier inaccessible for other materials non containing nickel, as increased inductance value (1.6 T) and high stability of magnetic permeability versus temperature.
|Characteristic||Mo-permalloy||High Flux||XFlux||Kool Mµ|
|Dependency of permeability on DC magnetization||Good||Best||Best||Average|
|Saturation||0,75 T||1,5 T||1,6 T||1,05 T|
|Unit cost||Highest||Average||Low||Very low|
Selection of analogues in Magnetics production based on core’s code (code part)
To substitute currently used products with products of Magnetics and to select a most suitable required analogue, you may access to cross-reference list.
Ring Powder Cores Made of MPP, High Flux, KooL Mµ, XFlux materials
Thin Ring Cores Made of MPP THINZ Mo-permalloy
E-configured Cores Made of KooL Mµ Material
U-configured Cores and I-Plate Made of Kool Mµ Material
Powerful Composite Magnetic Circuits of Ring and Oval Configurations Made of Kool Mµ Material
Advantages of Magnetics’s Powder Materials
- Expanded Nomenclature Series.
- Presence of dielectric coating that makes a winding process easier and significantly increases a life time of products being operated in worse climatic environment and withstands a breakdown voltage of up to 1500 V.
- Tighter requirements for a variation of single-turn inductance ratio (up to 2%) - domestic Russian КГЖП757140.001ТУ norm with acceptance 5 permits a variation of up to 10%.
- Availability of thermo-compensated technological modes permitting to produce high-stability precision inductance coils for operation in wide temperature range.
- Excellent technical support in form of literature and articles.
- Low (as compared with domestic-made powder materials) cost of cores.