FT&ET Core Introduce of FT cores and ET cores: As kind of ferrite cores, both FT cores and ET cores are possess characters of ferrites, which exhibit high permeability and high resistivity. Also FT cores and ET cores are also reasonably stable (repeatable properties) over time and temperature. Application of FT cores and ET cores: FT cores and ET cores are widely used for EMC Countermeasure, EMC filters. ET-core:For Common-Mode Filter, Double Closed-Magnetic Circuit Cores. FT-core:For Common-Mode Filter, Square Closed-Magnetic Circuit Cores. Type Dimensions (mm) A B C Dmin E F H FT20 20.6±0.3 14.1±0.3 4.6±0.3 15.7 7.35 4.2±0.2 2.4±0.2 FT20A 20.6±0.3 14.1±0.25 4.6±0.2 15.7 7.25 4.2±0.2 FT21 21.5±0.5 14.9±0.3 4.5±0.3 16.2±0.3 7.6 4.2±0.3 ET20 20.1±0.4 20.1±0.4 4.4±0.2 15.7 15.7 4.0±0.2 ET24 24.0 +0.7 -0.4 24.0 +0.7 -0.4 4.0±0.3 4.0±0.2 18.9 18.9 ET24A 24.2±0.5 24.2±0.3 4.0±0.3 19.0 19.0 4.0±0.3 ET25 25.5±0.5 25.5±0.5 5.0±0.3 5.0±0.3 19.2 19.2 2.9±0.2 ET28 28.7±0.5 28.7±0.5 5.0±0.3 5.0±0.3 22.2 22.2 2.9±0.2 ET28A 28.45±0.55 28.45±0.55 5.0±0.3 22.0 22.2 5.0±0.3 ET29/30 29.0±0.4 30.0±0.4 5.0±0.3 22.6 23.6 5.0±0.3 ET35 35.5±0.6 35.5±0.6 7.5±0.4 7.5±0.3 26.5 26.5 ET35A 35.3±0.6 35.3±0.6 7.5±0.3 26.8 26.8 7.3±0.25 2.4±0.15 4.0±0.2 Core parameter Al(nH/N²)(±30%) Type C1 (mm-1) Ae (mm2) Ie (mm) Ve (mm3) weight (g/pr.) FT20 4.21 12.9 54.4 700 3.7 FT20A 4.41 12.0 53.1 639 3.7 FT21 4.19 13.4 56.2 754 ET20 2.93 17.2 50.5 ET24 3.44 17.5 ET24A 3.46 ET25 F5 F7 F10 2200 2690 1400 2000 2800 4.1 1450 2100 2900 871 4.3 2150 3200 4300 60.3 1050 5.6 2600 3600 17.5 60.8 1060 5.4 2550 3600 2.3 27.6 62.35 1721 8.5 3200 3800 ET28 2.7 25.9 70.0 1820 10.5 3600 4800 ET28A 2.67 26.6 71.1 1890 9.6 2350 3300 4700 ET29/30 2.7 27.5 74.3 2050 10 2350 3300 4650 ET35 1.46 58.3 85.2 4970 26 6000 8400 ET35A 1.49 57.9 86.6 5020 25 5900 8400 2350 4200 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]