EP Core


Features of EP Cores
EP Cores are round center-post cubical shapes, which enclose the coil completely. This particular shape minimizes the effect of air gaps formed at mating surfaces in the magnetic path and provides a larger volume ratio to total space used. Shielding is excellent. Special advantages of ferrite EP Core assemblies: wide core selection like; high packaging density on PCBs; choice of linear or flat temperature characteristics; consistency and uniformity.
Application of EP Cores
High permeability EP-core can be used as EMI filter core, choke coil core, power inductor core, and for telecommunication like xDSL modem transformers. EP-core can meet low THD (Total Harmonic Distortion) over a wide temperature range and wide frequency range. Therefore EP cores are suitable for high performance transformer design for xDSL modem application.
Type | Dimensions (mm) | ||||||
---|---|---|---|---|---|---|---|
A | B | C | Dmin | E | F | G | |
EP7 | 9.2±0.2 | 3.7±0.2 | 3.4 +0 -0.2 |
6.6 +0 -0.4 |
7.6 +0 -0.4 |
2.6±0.2 | |
EP7A | 9.2±0.2 | 3.7±0.05 | 3.3±0.1 | 6.35±0.15 | 7.4±0.2 | 2.6±0.1 | 1.8 |
EP10 | 11.5±0.3 | 5.1±0.2 | 3.3±0.2 | 7.9 +0 -0.4 |
9.6 +0 -0.4 |
3.7±0.2 | |
EP10A | 11.5±0.3 | 5.1±0.1 | 3.3±0.15 | 7.65±0.2 | 9.4±0.2 | 3.7±0.1 | 1.85±0.1 |
EP13 | 12.5±0.3 | 6.5±0.3 | 4.4±0.2 | 9.0±0.2 | 10.0±0.3 | 4.8±0.2 | |
EP13A | 12.5±0.4 | 6.5 +0 -0.15 |
4.35±0.15 | 8.8±0.2 | 10.0±0.3 | 4.7±0.1 | 2.4 |
EP17 | 18.1±0.4 | 8.4±0.4 | 5.9 +0 -0.4 |
11.3 +0 -0.6 |
12.0±0.4 | 5.7±0.2 | |
EP17A | 18.0±0.5 | 8.5±0.2 | 5.65±0.2 | 11.0±0.25 | 12.0±0.4 | 5.65±0.15 | 3.25 |
EP20 | 24±0.5 | 10.7±0.2 | 8.8±0.3 | 15.0±0.4 | 16.5±0.4 | 6.9±0.2 | |
EP20A | 24±0.5 | 10.7±0.1 | 8.75±0.25 | 14.95±0.35 | 16.5±0.4 | 7.15±0.15 | 4.4 |
EP30 | 31.0±0.5 | 15.0 +0 -0.15 |
14.75±0.25 | 23.1±0.5 | 24.0±0.4 | 11.7±0.25 | 7.6±0.25 |
Type | Core parameter | weight(g/pr.) | Al(nH/N2)(±30%) | ||||
---|---|---|---|---|---|---|---|
C1 (mm-1) |
Ae (mm2) |
Ie (mm) |
Ve (mm3) |
F7 | Pc(W) | ||
EP7 | 1.52 | 10.3 | 15.7 | 163 | 1.4 | 3640 | 4200 |
EP7A | 1.52 | 10.3 | 15.7 | 162 | 1.4 | 3600 | 5200 |
EP10 | 1.7 | 11.3 | 19.2 | 218 | 2.8 | 3360 | 3860 |
EP10A | 1.7 | 11.3 | 19.2 | 217 | 2.8 | 3300 | 4700 |
EP13 | 1.24 | 19.6 | 24.2 | 476 | 5.2 | 4200 | 5600 |
EP13A | 1.24 | 19.5 | 24.2 | 472 | 5.1 | 4900 | 7000 |
EP17 | 0.84 | 33.9 | 28.5 | 966 | 12 | / | 8000 |
EP17A | 0.84 | 33.9 | 28.5 | 966 | 12 | 8850 | 12650 |
EP20 | 0.51 | 78 | 39.8 | 3120 | 28 | / | 13500 |
EP20A | 0.508 | 78 | 39.8 | 3120 | 28 | 19500 | 19350 |
EP30 | 0.351 | 179 | 11200 | 11200 | 75 |
Pc:25kHz,200mT,100 ( LP2)
100kHz,100mT,100 ( LP3 )