Characteristics

iron powder core,metallic powder core,toroidal core,e cores,bus bar cores,u cores,i cores
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Material Properties
1.MATERIAL PROPERTIES OF THE IRON POWDER CORE
Characteristics \
35
55
75
Material
Permeability µ
35
55
75
Temp.Coef.of
250
360
825
Perm(+ppm/oC)
Yellow/
Green/
Yellow/
Color Code
red
red
white
22
33
60
22
33
60
75
410
600
950
650
Gray/
green
Gray/
yellow
Green/
yellow
Green/
blue
2.SIZE TOLERANCE(mm) OF THE IRON POWDER CORE
Yuxiang Part Number
OD(mm)
YT30-YT38
±0.35
YT44-YT72
±0.50
YT80-YT141
±0.50
YT150-YT225
±0.60
YT249-YT300
±0.75
ID(mm)
±0.35
±0.50
±0.50
±0.60
±0.75
75a
Ht(mm)
±0.35
±0.50
±0.60
±0.75
±0.75
The listed tolerance includes coating
3.MATERIAL PROPERTIES OF OTHER METALLIC POWDER CORE
Temp.Coeff. (-65~125) Density (g/ Grey
TypeMaterial µ
Q
oC (ppm)
cm3)
Color
T3H FeNi50 60 ≥20
7.6
Blue
≤300
T4H FeNi50 125 ≥5
7.6
Blue
≤300
Bs
(Gs)
13000
13000
Inductance coeff.
Tolerance Al
±15%
±15%
SHAPE
SYMBOL AND FORMULA
Ae-Core Cross sectional area(cm2)
Le - Effective magnetic path length(cm)
N - Winding turns
AL -Inductance rated value (nH/N2)of one core,during frequency
10KHz and AC flus density 10 gauss(lmT)
L - Inductance
µe - Effective Permeability
π - 3.14
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http://www.magnet-tech.com/product/MnZn/characteristics.htm
06/11/2007 10:04:13 AM