MnZn High Permeability Material

FT&ET Core

FT cores,ET cores,FT-core,ET-core,Flat Transformer core,FT kerne,ET kerne,ETS Kerne,FT-kern,ET-kernFT cores,ET cores,FT-core,ET-core,Flat Transformer core,FT kerne,ET kerne,ETS Kerne,FT-kern,ET-kern

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 2.4±0.15
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 4.0±0.2
ET35A 35.3±0.6 35.3±0.6 7.5±0.3 26.8 26.8 7.3±0.25
Type Core parameter weight (g/pr.) Al(nH/N²)(±30%)
C1
(mm-1)
Ae
(mm2)
Ie
(mm)
Ve
(mm3)
F5 F7 F10
FT20 4.21 12.9 54.4 700 3.7 2200 2690
FT20A 4.41 12.0 53.1 639 3.7 1400 2000 2800
FT21 4.19 13.4 56.2 754 4.1 1450 2100 2900
ET20 2.93 17.2 50.5 871 4.3 2150 3200 4300
ET24 3.44 17.5 60.3 1050 5.6 2600 3600
ET24A 3.46 17.5 60.8 1060 5.4 2350 2550 3600
ET25 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 4200 5900 8400
Al:1kHz,0.5mA,100Ts