EI cores,EI kerne,ferrite EI core,EI-core,power transformer cores,power inductor cores, China Professional Ferrite Core Supplier p EI CORES Introduce of EI cores “E” shapes used in “E-E” and “E-I” combinations became popular choices. “Scrapless” “E-I” patterns were developed. The electrical steel stamped out of two adjacent “E” laminations (placed leg end to leg end) to form the winding window area became the two “I” laminations to be placed across the leg ends of the “E” laminations. Since EI-core has two open coil sides, ferrite EI core provide substantial room to bring high current lead wires out from the coil. This also permits good heat dissipation. Ferrite EI core is easier to achieve high voltage electrical. EI cores are for mains transformers possess many benefits such as low noise, low magnetising current, fast assembly, and low cost. current, fast assembly, and low cost. EI cores,EI kerne,ferrite EI core,EI-core,power transformer cores,power inductor cores, Application of EI cores EI-core is widely used in various kinds of power transformer cores, power inductor cores and chokes. Type EI12.5 EI16 EI16A EI16B A 12.5±0.3 16.0±0.4 16.0±0.3 16.1±0.3 B 7.4±0.2 12.4±0.3 14.7±0.3 6.5±0.2 EI19 19.2±0.4 13.6±0.4 EI19A EI22 19.0±0.3 22.2±0.3 15.9±0.4 14.4±0.25 EI22A 22.0±0.6 EI22B C 5.0±0.2 4.8±0.2 4.8±0.2 9.0±0.2 5.1 +0 -0.5 Dimensions(mm) D E 2.4±0.2 9.1min 4.0±0.2 11.7 min 4.0±0.2 11.8 min 3.0±0.2 12.5min 5.1 +0 14.0min -0.5 F 5.1±0.2 10.4±0.3 10.8±0.2 5.00±0.2 I 1.5±0.15 2.0±0.2 2.0±0.2 1.5±0.1 11.0±0.3 2.4±0.2 2.35±0.2 4.5±0.2 4.85±0.25 5.8±0.3 6.0 +0 14.0±0.3 12.8min 15.0±0.3 4.85±0.25 5.75±0.25 6.0 +0 15.6min 11.3±0.3 10.5±0.3 11.0 +0.6 -0 4.0±0.3 22.0±0.6 14.6±0.3 6.0 6.0 15.6min 10.6±0.3 4.5±0.3 EI22C 22.0±0.4 5.75±0.25 5.75±0.25 16.0±0.4 25.4±0.5 6.8 +0 -0.5 6.6±0.3 18.6min 11.0±0.2 13.0 +0.5 4.0±0.2 EI25A 19.0±0.4 16.3 +0.5 EI25B EI28 25.1±0.4 28.0±0.4 18.6min 13.25±0.25 12.8±0.2 12.8 +0.3 -0.2 3.5±0.3 EI28B 28.0±0.6 16.75±0.25 7.25±0.25 18.6min 12.25±0.25 3.5±0.3 EI30 30.5±0.5 21.5 +0.6 -0.2 -0.5 +0 11.0 -0.6 11.0 +0 -0.5 6.5±0.3 7.2±0.3 7.5 +0 2.75±0.15 3.5±0.15 28.0±0.6 6.75±0.25 10.7±0.3 11.0 +0 19.1min 18.6min EI28A 19.0±0.5 20.8±0.4 17.5 +0.3 EI30A 30.0±0.6 EI33 33.0±0.6 21.25±0.25 24.0 +0.5 10.7±0.3 13.0 +0 EI33A EI35A EI35B 33.0±0.6 35.0±0.6 35.0±0.6 23.5±0.5 24.2±0.5 24.2±0.5 EI40A 40.0±0.7 EI40B -0.1 -0.2 -0.50 +0 -0.50 -0.50 +0 -0.50 -0.5 -0.1 +0 -0.6 20.0min 16.5 10.7±0.3 19.5min 5.5±0.2 9.7±0.3 23.8min 16.5±0.25 19.0 +0.5 9.7±0.3 10.0±0.3 10.0±0.3 12.0 +0 23.6min 24.5min 24.5min 26.8min 19.0±0.5 18.2±0.3 18.2±0.3 21.0 +0.7 5.0±0.3 5.0±0.3 5.0±0.3 27.3±0.3 12.7±0.3 10.0±0.3 11.7±0.3 12.0 +0 40.0±0.7 27.2 +0.6 12.0 12.0 27.5min 11.0 +0.6 7.5±0.3 EI41 EI50 EI50A 41.0±0.9 50.0±0.7 50.0±1.2 26.2±0.4 33.35±0.35 33.3±0.4 11.8±0.6 14.6±0.4 14.8±0.6 11.8±0.6 14.6±0.4 14.8±0.6 28.0min 34.0min 34.0min 20.2±0.4 24.75±0.3 24.8±0.4 7.2±0.4 9.0±0.3 9.0±0.4 EI60 EI70 60.0±0.8 70.0±1.5 35.85±0.35 45.5±0.5 15.6±0.4 19.5±0.5 15.6±0.4 19.5±0.5 44.1min 50.0±0.5 27.85±0.35 35.5±0.5 8.5±0.3 10.5±0.5 -0 -0 -0.5 -0.5 +0 -0.5 11.0 -0.5 +0 -0.5 +0.6 3.0±0.2 -0 -0 -0 -0 5.5±0.3 5.0±0.3 6.7±0.3 EI cores,EI kerne,ferrite EI core,EI-core,power transformer cores,power inductor cores, EI60 EI70 Type EI12.5 EI16 EI16A EI16B EI19 EI19A EI22 EI22A EI22B EI22C EI25A EI25B EI28 EI28A EI28B EI30 EI30A EI33 EI33A EI35A EI35B EI40A EI40B EI41 EI50 EI50A EI60 EI70 60.0±0.8 70.0±1.5 C1 (mm-1) 1.44 1.84 1.90 1.10 1.5 1.68 0.94 1.1 0.94 1.15 1.1 1.22 0.586 0.55 0.52 0.5 0.522 0.57 0.570 0.6 0.5 0.5 0.5 0.533 0.4 0.411 0.4 0.37 35.85±0.35 45.5±0.5 15.6±0.4 19.5±0.5 Core parameter Ae Ve Ie 2 (mm ) (mm) (mm3) 14.4 20.6 297.5 19.7 34.9 685.3 18.8 35.9 676 26.4 29.1 767 24 39.0 1028.2 23.3 39.2 913 42.0 39.3 1630 40.1 42.3 1697.0 42 39.3 1650.6 37.0 42.5 1570 44.3 48.5 2145 39.7 48.6 1930 84.4 49.5 4170 89.5 49.3 4399 92.3 48.9 4515 115.6 58.2 67341.1 111 58.0 6440 124.9 67.3 8408 119 67.5 8000 107 68.1 731.1 126 68.1 8564 150 76.5 11534 153 76.3 11683 145 77.0 11100 231 94.1 21759 230 94.0 21600 272 111.8 30454.4 390 133 51900 15.6±0.4 19.5±0.5 weight (g/pr.) 1.9 3.3 3.4 3.4 5.0 4.6 9.8 9.8 9.8 8.4 9.8 9.8 22 22.0 22.0 34.0 34 41.0 41 36.0 43.0 60.0 60.0 56 115 115 139 252 44.1min 50.0±0.5 27.85±0.35 35.5±0.5 8.5±0.3 10.5±0.5 Al(nH/N²) F2BD F2B1 F3 (±25%) (±25%) (±25%) 1200 1200 1300 1000 1000 1400 1250 2300 1200 1200 1500 1300 2400 ≥1600 1800 1800 ≥1700 1900 1900 1950 ≥1500 1800 1800 1900 3800 ≥3600 3800 3800 3800 3800 4500 4000 3700 4900 4690 ≥3900 4200 4000 4400 3500 3200 4200 3200 3200 4400 5100 4860 5400 5100 4860 5400 4860 6450 6100 7000 6110 6250 5600 6400 8070 Al:1kHz,0.5mA,100Ts 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] Pc(W) F2B1 (max.) 0.42 0.38 0.55 0.81 0.95 1.16 2.51 3.23 4.0 6.45 2.16* 6.23*