TDK produces a wide range of E cores sizes. Cores with sizes fromЕ8 to Е60 are being produced in the material PC47 characterising by low relative losses comparing to ferrite materials for application in power electronics produced by other companies.
Ferrite coreswith large sizes E70, Е80 и Е90are being produced on the base of materialsРЕ90 and РЕ22 and are suitable for operating at high currents.
E Coresizes: TDK and other producers
TDK Е cores in-stock.
Ferrite cores produced by TDK correspond all modern standards IEC. Together with cores accessories (clamps, coilformers) can be applied.
Dimensions of E, EF cores
| Coretype | A [mm] | B [mm] | C [mm] | D [mm] | Emin [mm] | F [mm] | H [mm] |
| EE8-Z | 8.3±0.2 | 4.0±0.1 | 3.6±0.2 | 1.85±0.15 | 6.0 | 3.0±0.1 | 1.0 |
| EE10/11-Z | 10.2±0.2 | 5.5±0.1 | 4.75±0.15 | 2.45±0.15 | 7.7 | 4.20±0.15 | 1.1 |
| EF12.6-Z | 12.7±0.4 | 6.4±0.1 | 3.6±0.2 | 3.65±0.15 | 8.8 | 4.65±0.15 | 1.83 |
| EE13-Z | 13.0±0.2 | 6.0±0.15 | 6.15±0.15 | 2.75±0.15 | 10.0 | 4.6±0.1 | 1.4 |
| EE16-Z | 16.0±0.3 | 7.15±0.15 | 4.8±0.2 | 4.0±0.2 | 11.7 | 5.1±0.2 | 2.0 |
| SEE16-Z | 16.0±0.3 | 7.15±0.15 | 6.8±0.2 | 3.18±0.2 | 12.5 | 5.5±0.1 | 1.6 |
| EF16-Z | 16.1±0.6 | 8.05±0.15 | 4.5±0.2 | 4.55±0.15 | 11.3 | 5.9±0.2 | 2.2 |
| EE19-Z | 19.1±0.3 | 7.95±0.15 | 5.0±0.2 | 4.55±0.15 | 14.2 | 5.6±0.1 | 2.3 |
| EE19/16-Z | 19.29±0.32 | 8.1±0.18 | 4.75±0.13 | 4.75±0.08 | 14.05 | 5.715±0.125 | 2.46 |
| EF20-Z | 20.0±0.4 | 9.9±0.2 | 5.65±0.25 | 5.7±0.2 | 14.1 | 7.2±0.2 | 2.8 |
| EE22-Z | 22.0±0.3 | 9.35±0.15 | 5.75±0.25 | 5.75±0.25 | 13.0 | 5.35±0.15 | 4.3 |
| EE25/19-Z | 25.4±0.5 | 9.46±0.19 | 6.29±0.19 | 6.35±0.25 | 18.55 | 6.41±0.19 | 3.11 |
| EF25-Z | 25.05±0.75 | 12.55±0.25 | 7.2±0.3 | 7.25±0.25 | 17.5 | 8.95±0.25 | 3.55 |
| EE25.4-Z | 25.4±0.76 | 9.66±0.15 | 6.35±0.25 | 6.35±0.25 | 18.5 | 6.48±0.15 | 3.18 |
| EE30-Z | 30.0±0.5 | 13.15±0.15 | 10.7±0.3 | 10.7±0.3 | 19.7 | 8.15±0.15 | 5.0 |
| EF32-Z | 32.1±0.8 | 16.1±0.3 | 9.15±0.35 | 9.2±0.3 | 22.7 | 11.6±0.3 | 4.4 |
| EE35/28B-Z | 34.6±0.5 | 14.27±0.37 | 9.31±0.3 | 9.4±0.3 | 25.0 | 9.71±0.25 | 4.5 |
| EE35-Z | 34.54±1.0 | 14.35±0.35 | 9.53±0.38 | 9.39±0.27 | 24.89 | 9.71±0.28 | 4.75 |
| EE40-Z | 40.0±0.5 | 17.0±0.3 | 10.7±0.3 | 10.7±0.3 | 27.4 | 10.25±0.25 | 6.0 |
| EE41/33C-Z | 41.07±0.8 | 16.78±0.4 | 12.57±0.38 | 12.64±0.45 | 28.55 | 10.38±0.3 | 6.0 |
| E42/42/15-Z | 42.15±0.85 | 21.0±0.2 | 14.95±0.25 | 11.95±0.25 | 29.5 | 15.15±0.35 | 6.025 |
| EE42/42/20-Z | 42.15±0.85 | 21.0±0.2 | 19.7±0.3 | 11.95±0.25 | 29.5 | 15.15±0.35 | 6.025 |
| EE47/39-Z | 47.12±0.48 | 19.63±0.2 | 15.62±0.25 | 15.62±0.25 | 31.72 | 12.2±0.13 | 7.49 |
| EE50-Z | 50.0+1.0/-0.7 | 21.3±0.3 | 14.6±0.4 | 14.6±0.4 | 34.2 | 12.75±0.25 | 7.5 |
| EE55/55/21-Z | 55.15±1.05 | 27.5±0.3 | 20.7±0.3 | 16.95±0.25 | 37.5 | 18.8±0.3 | 8.53 |
| EE57/47-Z | 56.57±1.0 | 23.6±0.23 | 18.8±0.25 | 18.80±0.25 | 38.1 | 14.63±0.15 | 9.02 |
| EE60-Z | 50.0+1.1/-0.8 | 22.3±0.3 | 15.6±0.4 | 15.6±0.4 | 43.8 | 14.05±0.25 | 7.7 |
The list of E cores produced by TDK
| Coretype | Material | Ordering code | Effective parameters | Al [nH/T²] | Core losses (W) max. 100kHz 200 mT 100°С | ||||
| ∑l/A [mm-1] |
Ae [mm²] | le [mm] | Ve [mm³] | Без зазора | С зазором | ||||
| EE8-Z | PC47 | PC47EE8-Z | 2.75 | 7.0 | 19.2 | 134 | 610±25% | 40±7% | 0.05 |
| 63±10% | |||||||||
| EE10/11-Z | PC47 | PC47EE10/11-Z | 2.16 | 12.1 | 26.1 | 315 | 850±25% | 40±7% | 0.12 |
| 63±10% | |||||||||
| EF12.6-Z | PC47 | PC47EF12.6-Z | 2.28 | 13.0 | 29.6 | 385 | 810±25% | 63±7% | 0.16 |
| 100±10% | |||||||||
| EE13-Z | PC47 | PC47EE13-Z | 1.77 | 17.1 | 30.2 | 517 | 1130±25% | 63±7% | 0.22 |
| 100±10% | |||||||||
| EE16-Z | PC47 | PC47EE16-Z | 1.82 | 19.0 | 34.5 | 656 | 1140±25% | 80±7% | 0.28 |
| 160±10% | |||||||||
| SEE16-Z | PC47 | PC47SEE16-Z | 1.69 | 21.7 | 36.6 | 795 | 1240±25% | 80±7% | 0.34 |
| 160±10% | |||||||||
| EF16-Z | PC47 | PC47EF16-Z | 1.87 | 20.1 | 37.6 | 754 | 1100±25% | 63±7% | 0.31 |
| 100±10% | |||||||||
| EE19-Z | PC47 | PC47EE19-Z | 1.71 | 23.0 | 39.4 | 906 | 1250±25% | 80±7% | 0.39 |
| 160±10% | |||||||||
| EE19-Z | PC47 | PC47EE19-Z | 1.71 | 23.0 | 39.4 | 906 | 1250±25% | 80±7% | 0.39 |
| 160±10% | |||||||||
| EE19/16-Z | PC47 | PC47EE19/16-Z | 1.75 | 22.4 | 39.1 | 876 | 1350±25% | 80±7% | 0.38 |
| 160±10% | |||||||||
| EE20/20/5-Z | PC47 | PC47EE20/20/5-Z | 1.38 | 31.0 | 43.0 | 1340 | 1400±25% | 100±7% | 0.47 |
| 160±10% | |||||||||
| EF20-Z | PC47 | PC47EF20-Z | 1.34 | 33.5 | 44.9 | 1500 | 1570±25% | 100±7% | 0.59 |
| 160±10% | |||||||||
| EE22-Z | PC47 | PC47EE22-Z | 0.970 | 41.0 | 39.6 | 1620 | 2180±25% | 125±7% | 0.56 |
| 250±10% | |||||||||
| EE25/19-Z | PC47 | PC47EE25/19-Z | 1.22 | 40.0 | 48.7 | 1950 | 2000±25% | 100±7% | 0.80 |
| 200±10% | |||||||||
| EE25/19-Z | PC47 | PC47EE25/19-Z | 1.22 | 40.0 | 48.7 | 1950 | 2000±25% | 100±7% | 0.80 |
| 200±10% | |||||||||
| EF25-Z | PC47 | PC47EF25-Z | 1.11 | 51.8 | 57.8 | 2990 | 2000±25% | 100±7% | 1.27 |
| 160±10% | |||||||||
| EE25.4-Z | PC47 | PC47EE25.4-Z | 1.21 | 40.3 | 48.7 | 1963 | 2000±25% | 125±7% | 0.84 |
| 250±10% | |||||||||
| EE30-Z | PC47 | PC47EE30-Z | 0.529 | 109.0 | 57.7 | 6290 | 4690±25% | 200±5% | 2.03 |
| 400±7% | |||||||||
| EE30/30/7-Z | PC47 | PC47EE30/30/7-Z | 1.12 | 59.7 | 66.9 | 4000 | 2100±25% | 160±5% | 1.41 |
| 250±7% | |||||||||
| EF32-Z | PC47 | PC47EF32-Z | 0.893 | 83.2 | 74.3 | 6180 | 2590±25% | 160±5% | 2.09 |
| 250±7% | |||||||||
| EE35/28B-Z | PC47 | PC47EE35/28B | 0.819 | 84.9 | 69.6 | 5907 | 2950±25% | 200±5% | 2.02 |
| 400±7% | |||||||||
| EE35-Z | PC47 | PC47EE35-Z | 0.774 | 89.3 | 69.2 | 6179 | 3170±25% | 200±5% | 2.14 |
| 400±7% | |||||||||
| EE40-Z | PC47 | PC47EE40-Z | 0.606 | 128 | 77.3 | 9890 | 4150±25% | 200±5% | 3.10 |
| 400±7% | |||||||||
| EE41/33C-Z | PC47 | PC47EE41/33C-Z | 0.495 | 157 | 77.6 | 12200 | 5060±25% | 200±5% | 4.10 |
| 400±7% | |||||||||
| EE42/42/15-Z | PC47 | PC47EE42/42/15-Z | 0.534 | 182 | 97.0 | 17600 | 4700±25% | 250±5% | 5.94 |
| 400±7% | |||||||||
| EE42/42/20-Z | PC47 | PC47EE42/42/20-Z | 0.415 | 235 | 97.4 | 22900 | 6100±25% | 250±5% | 9.65 |
| 400±7% | |||||||||
| EE47/39-Z | PC47 | PC47EE47/39-Z | 0.374 | 242 | 90.6 | 21930 | 6660±25% | 250±5% | 9.04 |
| 400±7% | |||||||||
| EE50-Z | PC47 | PC47EE50-Z | 0.425 | 226 | 95.8 | 21600 | 6110±25% | 250±5% | 8.78 |
| 500±7% | |||||||||
| EE55/55/21-Z | PC47 | PC47EE55/55/21-Z | 0.348 | 354 | 123 | 43700 | 7100±25% | 250±5% | 18.51 |
| 400±7% | |||||||||
| EE57/47-Z | PC47 | PC47EE57/47-Z | 0.297 | 344 | 102 | 35100 | 8530±25% | 250±5% | 14.79 |
| 400±7% | |||||||||
| EE60-Z | PC47 | PC47EE60-Z | 0.446 | 247 | 110 | 27100 | 5670±25% | 250±5% | 11.35 |
| 500±7% | |||||||||
E cores of large sizes
| Coretype | A [mm] | 2B [mm] | C [mm] | D [mm] | E min [mm] | 2F [mm] | H [mm] | K [mm] |
| EE70/91/19 | 70.0±1.5 | 91.0±1.0 | 19.5±0.5 | 19.5±0.5 | 48.5 | 71.0±1.0 | 10.0±0.5 | 15.3 |
| EE70/108/31N | 70.0±1.5 | 108.0±1.0 | 31.6±0.5 | 22.2±0.5 | 46.3 | 85.6±1.0 | 11.1±0.5 | 12.8 |
| EE80/76/20 | 80.0±1.5 | 76.0±1.0 | 20.0±0.5 | 19.5±0.5 | 58.5 | 55.0±0.8 | 10.0±0.5 | 20.0 |
| EE90/56/16 | 90.0±2.0 | 56.4±1.0 | 16.5±0.5 | 25.0±1.0 | 63.0 | 30.4±0.0 | 12.5±0.5 | 20.0 |
The range of large-sized Е cores
| Coretype | Materual | Ordering code | Effective parameters | Al [nH/T ²] 1 кГц 0.4 А/m 23°С |
|||
| ∑l/A [mm-1] |
Ae [mm²] | le [mm] | Ve [mm³] | ||||
| EE70/91/19 | PE22 | PE22 EE70x91x19-Z | 0.52779 | 386 | 204 | 78690 | 3930±25% |
| PC40 | PC40 EE70x91x19-Z | 4910±25% | |||||
| PE90 | PE90 EE70x91x19-Z | 4697±25% | |||||
| EE70/108/31N | PE22 | PE22 EE70x108x31N-Z | 0.32992 | 703 | 232 | 162900 | 6360±25% |
| PC40 | PC40 EE70x108x31N-Z | 7970±25% | |||||
| PE90 | PE90 EE70x108x31N-Z | 7623±25% | |||||
| EE80/76/20 | PE22 | PE22 EE80x76x20-Z | 0.44878 | 406 | 182 | 73910 | 4590±25% |
| PC40 | PC40 EE80x76x20-Z | 5720±25% | |||||
| PE90 | PE90 EE80x76x20-Z | 5471±25% | |||||
| EE90/56/16 | PE22 | PE22 EE90x56x16-Z | 0.33583 | 419 | 141 | 59050 | 5960±25% |
| PC40 | PC40 EE90x56x16-Z | 7380±25% | |||||
| PE90 | PE90 EE90x56x16-Z | 7059±25% | |||||
Designation in Documentation
The structure of ordering code:
Measurement unit — pcs (one part).
PC47 EF20 -Z — the core type
PC47 — ferrite material РС47.
EF20 —the form and core size.
Z — the value AL; Z - ungapped.
