Sendust Cores


Si-Fe® Cores


Neu Flux® Cores


High Flux Cores


MPP Cores


Iron Powder Cores


Sendust Cores


Nanodust® Cores

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Alloy Powder Cores

Alloy Powder Cores
       Alloy Powder Cores are soft ferromagnetic cores made from ferrous alloy powders, after surface insulation coating, mixed pressed with in-organic binder then annealing in high temperature. On the basis of different composition of the alloy powders, it mainly can be divided to 5 kinds, including Sendust Cores, Si-Fe Cores, Neu Flux Cores, High Flux Cores and MPP Cores.
 

一般信息
 
 

    It means apparent indectance value in mH per 1000 turns,The tolerance of apparent inductance for our standard cores is ±8%.The Magnetic Characteristic curves shown have a typical tolerance of ±10%,The curves on Core Loss characteristics have typical tolerance of ±15%。

 
Turns
1000
500
300
100
50
25
Actual Inductance
+0.0%
+0.5%
+1.0%
+3.0%
+5.0%
+8.5%
 
 

     KDM Magnetic Powder Cores Series are coated by improved epoxy that can resist high temperature up to grade,The coating also complies with the requirement of environmental protection and RoHS.The finishing has a minimum dielectric strength of 600Vrms at 50Hz and can resist most cleaning solvents.However,extended exposures to certain solvents may have detrimental effects.

     The method of testing the insulation strength of the surfacing coating:put two electroplates on tne corners of the cores'two surfaces,app;ies 50Hz,1250Vrms and last for 5 seconds.
 
 
 
   
     KDM has designed standard packaging for shipment to customers around the world.We recommend the cores remain in the original factory packaging and be sheltered from rain or high humidity since uncoated iron can eventually form surface tust.Magnetic powder cores tend to be heavier than many other products and special conside ration must be given to the weight of the carton.Do not stack more than 5 cartons high to avoid crushing the bottom cartons.Our normal packing box's weight is form 15 to 20kg.Please be aware the cores are quite dense and package size can be deceivingly heavy.Damage will occur to cores if they are dropped on a hard surface then a crack or chip can result on tne core coating.Special consideeration for electrostatic discharge is not necessary with magnetic powder cores since they have a 'distributed air gap structure' and will not retain an electrostatic charge.Finally,as with most magnetic material.magnetic powder cores need to be kept free of metal shacings,oil,solvents,dirt,dust and acides.

 
Property
Composition

Core Loss(mW/cm3)
@
1000Gs/50kHz

DC-Bias(%µe)@
1000
Flux Density(Sat).
Curie Temp
Temp Stability
Color Code
Relative cost
Iron Powder
99%Fe
2000
40
12000Gs
750℃
Medium
Mix Color
0.3
Sendust
85%Fe,9%Si,6%Al
300
45
10500Gs
600℃
Good
Black
1
Si-FeTM
94%Fe.6%Si
750
70
16000Gs
700℃
Good
Blue
1.5
High Flux
50%Fe,50%Ni
400
78
15000Gs
700℃
Better
Khaki
4
MPP
17%Fe,9%Ni,2%Mo
280
50
7500Gs
400℃
Best
Gray
6

*Amorphous
Powder Cores

78%Fe,9%Si,13%B
420
68
14000Gs
400℃
Poor
-
3.5
Neu FluxTM
85%Fe,15%Si-Ni
480
78
16000Gs
650℃
Best
Browm
2
All test are based on 60µ material.
*For reference only,not in KDM product.