iron powder core,metallic powder core,toroidal core,e cores,bus bar cores,u cores,i cores Page 1 print version 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 Copyright 2005 YUXIANG Magnetic Materials Ind. Co.,Ltd.All Rights Reserved. Add:16F1,jinyuan building,NO.57,hubin S.Rd.,Xiamen,China.361004 Tel : (86)592 2225286 (86)592 2219816 (86)592 2217138 Fax: (86)592 2207122 Email : [email protected] [email protected] http://www.magnet-tech.com/product/MnZn/characteristics.htm 06/11/2007 10:04:13 AM