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HOME : PRODUCTS : SOFT MAGNETS : POWDER CORES
POWDER CORES
Arnold manufactures the following types of Soft Magnetic Powder Cores in both toroidal and "E" configurations. They are used extensively for inductors in a wide variety of electronic systems, including computer and telecommunications equipment power supplies.
Arnold Powder Cores are RoHS compliant.
SUPER-MSS® utilizes an iron-silicon-aluminum alloy powder which has high resistivity and low magnetostriction. A 10,000 Gauss saturation level provides high energy storage at a lower total loss compared with iron powder or gapped ferrites, and at lower cost than MPP.
MPP, molypermalloy powder, cores are 81% nickel, 2% molybdenum, 17% iron. They exhibit the lowest core losses of all commonly available powder toroids. Available in permeabilities from 14 to 350 and in sizes from 0.14" to 5.2" OD (3.56 to 132 mm), MPP cores are ideal for suppressing EMI/RFI in switch mode power supplies and in telecommunication applications.
HI-FLUX® cores are a variant of MPP and contain a 50% nickel - 50% iron. HI-FLUX cores have the highest magnetic saturation enabling operation at higher flux density and DC bias than all other commonly available core materials.
Fe-Si™ cores are made from a six per cent iron-silicon alloy and offer an excellent compromise in performance and cost.
The Soft Magnetics Applications Guide is available for your reference in our Magnetic Technologies Center.
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Part number cross reference lists covering MPP, HI-FLUX and SUPER-MSS are available on the catalogs page.
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Arnold Powder Cores are available from both our factory and from our global distributor network. For rapid delivery of sample cores, especially in Asia, contact 
In the USA and in Europe, if you need cores FAST, check our  inventory. For sample quantities and small production runs, cores are available from inventory in Rochester, NY, USA.
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