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sexta-feira, 21 de agosto de 2009

E ou I DE FERRITE


EI CORES

EI cores, EI cores, ferrite EI core, EI-core, power transformer cores, power inductor cores, parylene coated cores, EI16, EI12.5, epoxy coated cores, powder coating cores, EI19, EI coresEI cores, EI cores, ferrite EI core, EI-core, power transformer cores, power inductor cores, parylene coated cores, EI16, EI12.5, epoxy coated cores, powder coating cores, EI19, 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.

Application of EI cores

EI-core is widely used in various kinds of power transformer cores, power inductor cores and chokes.

Type Dimensions(mm)
A B C D E F I
EI12.5 12.5±0.3 7.4±0.2 5.0±0.2 2.4±0.2 9.1min 5.1±0.2 1.5±0.15
EI16 16.0±0.4 12.4±0.3 4.8±0.2 4.0±0.2 11.7 min 10.4±0.3 2.0±0.2
EI16A 16.0±0.3 14.7±0.3 4.8±0.2 4.0±0.2 11.8 min 10.8±0.2 2.0±0.2
EI16B 16.1±0.3 6.5±0.2 9.0±0.2 3.0±0.2 12.5min 5.00±0.2 1.5±0.1
EI19 19.2±0.4 13.6±0.4 5.1 +0
-0.5
5.1 +0
-0.5
14.0min 11.0±0.3 2.4±0.2
EI19A 19.0±0.3 15.9±0.4 4.85±0.25 4.85±0.25 14.0±0.3 11.3±0.3 2.35±0.2
EI22 22.2±0.3 14.4±0.25 5.75±0.25 5.8±0.3 12.8min 10.5±0.3 4.5±0.2
EI22A 22.0±0.6 15.0±0.3 6.0 +0
-0.50
6.0 +0
-0.50
15.6min 11.0 +0.6
-0
4.0±0.3
EI22B 22.0±0.6 14.6±0.3 6.0 +0
-0.50
6.0 +0
-0.50
15.6min 10.6±0.3 4.5±0.3
EI22C 22.0±0.4 19.0±0.4 5.75±0.25 5.75±0.25 16.0±0.4 11.0±0.2 4.0±0.2
EI25A 25.4±0.5 16.3 +0.5
-0.1
6.8 +0 -0.5 6.6±0.3 18.6min 13.0 +0.5
-0.1
3.0±0.2
EI25B 25.1±0.4 19.0±0.5 6.75±0.25 6.5±0.3 19.1min 13.25±0.25 2.75±0.15
EI28 28.0±0.4 20.8±0.4 10.7±0.3 7.2±0.3 18.6min 12.8±0.2 3.5±0.15
EI28A 28.0±0.6 17.5 +0.3
-0.2
11.0 +0
-0.5
7.5 +0
-0.5
18.6min 12.8 +0.3
-0.2
3.5±0.3
EI28B 28.0±0.6 16.75±0.25 11.0 +0
-0.6
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
11.0 +0
-0.5
11.0 +0
-0.6
20.0min 16.5 +0.6
-0
5.5±0.3
EI30A 30.0±0.6 21.25±0.25 10.7±0.3 10.7±0.3 19.5min 16.5±0.25 5.5±0.2
EI33 33.0±0.6 24.0 +0.5
-0
13.0 +0
-0.5
9.7±0.3 23.8min 19.0 +0.5
-0
5.0±0.3
EI33A 33.0±0.6 23.5±0.5 12.7±0.3 9.7±0.3 23.6min 19.0±0.5 5.0±0.3
EI35A 35.0±0.6 24.2±0.5 10.0±0.3 10.0±0.3 24.5min 18.2±0.3 5.0±0.3
EI35B 35.0±0.6 24.2±0.5 11.7±0.3 10.0±0.3 24.5min 18.2±0.3 5.0±0.3
EI40A 40.0±0.7 27.3±0.3 12.0 +0
-0.5
12.0 +0
-0.5
26.8min 21.0 +0.7
-0
6.7±0.3
EI40B 40.0±0.7 27.2 +0.6
-0
12.0 +0
-0.5
12.0 +0
-0.5
27.5min 11.0 +0.6
-0
7.5±0.3
EI41 41.0±0.9 26.2±0.4 11.8±0.6 11.8±0.6 28.0min 20.2±0.4 7.2±0.4
EI50 50.0±0.7 33.35±0.35 14.6±0.4 14.6±0.4 34.0min 24.75±0.3 9.0±0.3
EI50A 50.0±1.2 33.3±0.4 14.8±0.6 14.8±0.6 34.0min 24.8±0.4 9.0±0.4
EI60 60.0±0.8 35.85±0.35 15.6±0.4 15.6±0.4 44.1min 27.85±0.35 8.5±0.3
EI70 70.0±1.5 45.5±0.5 19.5±0.5 19.5±0.5 50.0±0.5 35.5±0.5 10.5±0.5
Type Core parameter weight
(g/pr.)
Al(nH/N²) Pc(W)
C1
(mm-1)
Ae
(mm2)
Ie
(mm)
Ve
(mm3)
F2BD
(±25%)
F2B1
(±25%)
F3
(±25%)
F2B1
(max.)
EI12.5 1.44 14.4 20.6 297.5 1.9 1200 1200 1300
EI16 1.84 19.7 34.9 685.3 3.3 1000 1000 1400
EI16A 1.90 18.8 35.9 676 3.4
1250
0.42
EI16B 1.10 26.4 29.1 767 3.4
2300
0.38
EI19 1.5 24 39.0 1028.2 5.0 1200 1200 1500
EI19A 1.68 23.3 39.2 913 4.6
1300
0.55
EI22 0.94 42.0 39.3 1630 9.8
2400
0.81
EI22A 1.1 40.1 42.3 1697.0 9.8 1800 1800 ≥1600
EI22B 0.94 42 39.3 1650.6 9.8 1900 1900 ≥1700
EI22C 1.15 37.0 42.5 1570 8.4
1950
0.95
EI25A 1.1 44.3 48.5 2145 9.8 1800 1800 ≥1500
EI25B 1.22 39.7 48.6 1930 9.8
1900
1.16
EI28 0.586 84.4 49.5 4170 22
3800
2.51
EI28A 0.55 89.5 49.3 4399 22.0 3800 3800 ≥3600
EI28B 0.52 92.3 48.9 4515 22.0 3800 3800 4500
EI30 0.5 115.6 58.2 67341.1 34.0 4000 3700 4900
EI30A 0.522 111 58.0 6440 34
4690
3.23
EI33 0.57 124.9 67.3 8408 41.0 4200 4000 ≥3900
EI33A 0.570 119 67.5 8000 41
4400
4.0
EI35A 0.6 107 68.1 731.1 36.0 3500 3200 4200
EI35B 0.5 126 68.1 8564 43.0 3200 3200 4400
EI40A 0.5 150 76.5 11534 60.0 5100 4860 5400
EI40B 0.5 153 76.3 11683 60.0 5100 4860 5400
EI41 0.533 145 77.0 11100 56
4860
6.45
EI50 0.4 231 94.1 21759 115 6450 6100 7000
EI50A 0.411 230 94.0 21600 115
6110
2.16*
EI60 0.4 272 111.8 30454.4 139 6250 5600 6400
EI70 0.37 390 133 51900 252
8070
6.23*
Al:1kHz,0.5mA,100Ts

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