Tape-wound toroidal and oval cores made of nanocrystalline VITROPERM or amorphous VITROVAC offering low losses over the full permeability range between µ~3,000 to µ>100,000.
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| E4010-W534 | 10 | 8 | 4 | 11.6 | 6.5 | 5.1 | toroidal | 0.03 | 2.83 | 0.7 | - | - | - | - | Magnetic amplifier, Spike Blocker | VITROVAC | industrial | plastic casing |
| E4010-W663 | 10.1 | 6.9 | 4.5 | 11.6 | 5.5 | 6 | toroidal | 0.06 | 2.67 | 1.2 | - | - | - | - | Magnetic amplifier, Spike Blocker | VITROVAC | industrial | plastic casing |
| E4010-W728 | 10.7 | 8.2 | 4.5 | 14 | 6.6 | 6.2 | toroidal | 0.05 | 2.97 | 1 | - | - | - | - | Magnetic amplifier | VITROVAC | industrial | plastic casing |
| E4012-W464 | 12.8 | 9.5 | 3.2 | 14.7 | 7.9 | 4.8 | toroidal | 0.04 | 3.5 | 1.1 | - | - | - | - | Magnetic amplifier, Spike Blocker | VITROVAC | industrial | plastic casing |
| E4012-W547 | 12 | 8 | 4.5 | 14 | 6.6 | 6.2 | toroidal | 0.07 | 3.14 | 1.7 | - | - | - | - | Magnetic amplifier, Spike Blocker | VITROVAC | industrial | plastic casing |
| E4015-W813 | 15 | 10 | 4.5 | 17.1 | 7.9 | 6.5 | toroidal | 0.09 | 3.93 | 2.7 | - | - | - | - | Magnetic amplifier | VITROVAC | industrial | plastic casing |
| E4019-P180 | 19 | 15 | 5 | 21.2 | 13 | 7.3 | toroidal | 0.08 | 5.34 | 3.29 | - | - | - | - | Residual Current Measurement | VITROVAC | industrial | plastic casing |
| E4019-W539 | 19 | 15 | 5 | 21.2 | 13 | 7.3 | toroidal | 0.08 | 5.34 | 3.3 | - | - | - | - | Magnetic amplifier, Spike Blocker, Residual Current Measurement | VITROVAC | industrial | plastic casing |
| E4019-W666 | 19.2 | 12.7 | 6 | 20.6 | 11.4 | 7.4 | toroidal | 0.16 | 5.01 | 6.2 | - | - | - | - | Magnetic amplifier | VITROVAC | industrial | plastic casing |
| E4020-W538 | 20 | 12.5 | 8 | 22.6 | 10.3 | 10.2 | toroidal | 0.24 | 5.1 | 9.4 | - | - | - | - | Residual Current Measurement | VITROVAC | industrial | plastic casing |
| E4025-W541 | 25 | 16 | 10 | 27.9 | 13.6 | 12.5 | toroidal | 0.36 | 6.44 | 17.9 | - | - | - | - | Magnetic amplifier, Spike Blocker | VITROVAC | industrial | plastic casing |
| E4025-W542 | 25 | 20 | 10 | 27.7 | 17.1 | 12.9 | toroidal | 0.2 | 7.1 | 10.9 | - | - | - | - | Magnetic amplifier, Spike Blocker, Residual Current Measurement | VITROVAC | industrial | plastic casing |
| E4030-W543 | 30 | 20 | 10 | 32.8 | 17.6 | 12.5 | toroidal | 0.4 | 7.85 | 24.2 | - | - | - | - | Magnetic amplifier, Spike Blocker | VITROVAC | industrial | plastic casing |
| E4040-W544 | 40 | 25 | 15 | 43.1 | 22.4 | 18.5 | toroidal | 0.9 | 10.2 | 70.8 | - | - | - | - | Magnetic amplifier, Spike Blocker | VITROVAC | industrial | plastic casing |
| L2009-P001 | 9.8 | 6.5 | 4.5 | 11 | 5.1 | 5.8 | toroidal | 0.06 | 2.56 | 1.09 | 25.6 | 0.13 | 9.63 | 0.25 | EMC | VITROPERM 550 HF | industrial | plastic casing |
| L2009-W914 | 9.8 | 6.5 | 4.5 | 11.2 | 5.1 | 5.8 | toroidal | 0.06 | 2.6 | 1.1 | 25.5 | 0.14 | 6.4 | 0.3 | EMC | VITROPERM 500 | industrial | plastic casing |
| L2010-W759 | 10 | 7 | 4.5 | 11.7 | 5.5 | 6.1 | toroidal | 0.05 | 2.67 | 1.1 | - | - | - | - | Magnetic amplifier, Spike Blocker | VITROPERM 500 | industrial | plastic casing |
| L2011-W760 | 11 | 8 | 4.5 | 14.1 | 6.6 | 6.3 | toroidal | 0.05 | 2.98 | 1.2 | - | - | - | - | Magnetic amplifier, Spike Blocker | VITROPERM 500 | industrial | plastic casing |
| L2012-P002 | 12 | 8 | 4.5 | 14.1 | 6.6 | 6.3 | toroidal | 0.07 | 3.14 | 1.62 | 25.3 | 0.16 | 9.48 | 0.3 | EMC | VITROPERM 550 HF | industrial | plastic casing |
| L2012-W498 | 12.5 | 10 | 5 | 14.3 | 8.5 | 7 | toroidal | 0.05 | 3.5 | 1.3 | 10 | 0.3 | 3.6 | 0.56 | EMC | VITROPERM 500 | industrial | plastic casing |
| L2012-W761 | 12 | 8 | 4.5 | 14.1 | 6.6 | 6.3 | toroidal | 0.07 | 3.14 | 1.7 | - | - | - | - | Magnetic amplifier, Spike Blocker | VITROPERM 500 | industrial | plastic casing |
| L2012-W762 | 12.5 | 10 | 4.5 | 14.1 | 8.5 | 6.8 | toroidal | 0.05 | 3.53 | 1.2 | - | - | - | - | Magnetic amplifier, Spike Blocker, Residual Current Measurement | VITROPERM 500 | industrial | plastic casing |
| L2012-W803 | 12.8 | 9.5 | 3.2 | 14.7 | 7.9 | 4.8 | toroidal | 0.04 | 3.5 | 1.1 | - | - | - | - | Magnetic amplifier, Spike Blocker | VITROPERM 500 | industrial | plastic casing |
| L2012-W902 | 12 | 8 | 4.5 | 14.1 | 6.6 | 6.3 | toroidal | 0.07 | 3.1 | 1.7 | 28 | 0.15 | 6.8 | 0.31 | EMC | VITROPERM 500 | industrial | plastic casing |
| L2014-V098 | 14.4 | 11.4 | 3.2 | 16.5 | 9.6 | 5 | toroidal | 0.04 | 4.1 | 1.1 | 10.5 | 0.21 | 2.6 | 0.44 | EMC | VITROPERM 500 | industrial | plastic casing |
| L2015-W865 | 15 | 10 | 4.5 | 17.1 | 7.9 | 6.5 | toroidal | 0.09 | 3.9 | 2.6 | 27 | 0.2 | 6.7 | 0.41 | EMC | VITROPERM 500 | industrial | plastic casing |
| L2016-W308 | 16 | 10 | 6 | 17.9 | 8.1 | 8.1 | toroidal | 0.14 | 4.1 | 4 | 11.7 | 1.2 | 6.5 | 1.7 | EMC | VITROPERM 500 | industrial | plastic casing |
| L2016-W373 | 16 | 10 | 6 | 17.6 | 8.3 | 8 | toroidal | 0.14 | 4.08 | 4.3 | 10 | - | - | - | power transformer | VITROPERM 500 | industrial | epoxy coating |
| L2016-W403 | 16 | 10 | 6 | 17.9 | 8.1 | 8.1 | toroidal | 0.14 | 4.1 | 4 | 43 | 0.2 | 10.1 | 0.41 | EMC | VITROPERM 500 | industrial | plastic casing |
| L2016-W619 | 16 | 12.5 | 6 | 17.8 | 10.7 | 8 | toroidal | 0.08 | 4.5 | 2.6 | 6 | 1.1 | 3.9 | 1.7 | EMC | VITROPERM 500 | industrial | epoxy coating |
| L2016-W620 | 16 | 12.5 | 6 | 17.8 | 10.7 | 8 | toroidal | 0.08 | 4.5 | 2.6 | 15 | 0.5 | 4.8 | 0.63 | EMC | VITROPERM 500 | industrial | epoxy coating |
| L2016-W763 | 16 | 10 | 6 | 18 | 8 | 8.1 | toroidal | 0.14 | 4.08 | 4.3 | - | - | - | - | Magnetic amplifier, Spike Blocker | VITROPERM 500 | industrial | plastic casing |
| L2016-W764 | 16.5 | 12.5 | 6 | 19.1 | 10.9 | 8.1 | toroidal | 0.1 | 4.56 | 3.2 | - | - | - | - | Magnetic amplifier, Spike Blocker | VITROPERM 500 | industrial | plastic casing |
| L2017-P003 | 17.5 | 12.6 | 6 | 19.2 | 10.9 | 8.1 | toroidal | 0.12 | 4.73 | 3.98 | 27.4 | 0.24 | 10.3 | 0.46 | EMC | VITROPERM 550 HF | industrial | plastic casing |
| L2017-W515 | 17.5 | 12.6 | 6 | 19.2 | 10.9 | 8.1 | toroidal | 0.12 | 4.7 | 4.1 | 30 | 0.23 | 6.9 | 0.48 | EMC | VITROPERM 500 | industrial | plastic casing |
| L2019-P004 | 19 | 15 | 10 | 21.2 | 13 | 12.3 | toroidal | 0.16 | 5.34 | 6.12 | 33 | 0.28 | 12.4 | 0.52 | EMC | VITROPERM 550 HF | industrial | plastic casing |
| L2019-W766 | 19 | 15.2 | 4.5 | 21.2 | 12.9 | 7.2 | toroidal | 0.07 | 5.37 | 2.7 | - | - | - | - | Spike Blocker, Magnetic amplifier, Residual Current Measurement | VITROPERM 500 | industrial | plastic casing |
| L2019-W838 | 19 | 15 | 10 | 21.2 | 13 | 12.3 | toroidal | 0.16 | 5.3 | 6.3 | 36.1 | 0.26 | 8.8 | 0.54 | EMC | VITROPERM 500 | industrial | plastic casing |
| L2019-W979 | 19 | 15 | 6.2 | 20.5 | 13.6 | 7.8 | toroidal | 0.1 | 5.34 | 3.89 | - | - | - | - | 50Hz/60Hz current transformer | VITROPERM 500 | industrial | epoxy coating |
| L2020-P005 | 20 | 12.5 | 8 | 22.6 | 10.3 | 10.2 | toroidal | 0.23 | 5.11 | 8.78 | 51.8 | 0.26 | 19.5 | 0.5 | EMC | VITROPERM 550 HF | industrial | plastic casing |
| L2020-V311 | Datasheet (English) 3d Model (English) | - | - | - | 23 | 9.8 | 11.1 | toroidal | 0.25 | 5.1 | 9.2 | 20 | 1 | 10.6 | 1.7 | EMC | VITROPERM 500 | automotive | plastic casing |
| L2020-V312 | Datasheet (English) 3d Model (English) | - | - | - | 23 | 9.8 | 11.1 | toroidal | 0.25 | 5.1 | 9.2 | 59.4 | 0.2 | 13.7 | 0.5 | EMC | VITROPERM 500 | automotive | plastic casing |
| L2020-V412 | Datasheet (English) 3d Model (English) | - | - | - | 23.2 | 9.8 | 11.1 | toroidal | 0.24 | 5.1 | 9 | 59 | 0.2 | 20.2 | 0.5 | EMC | VITROPERM 550 HF | automotive | plastic casing |
| L2020-W374 | 20 | 12.5 | 8 | 22 | 10.5 | 10 | toroidal | 0.24 | 5.11 | 9 | 13 | - | - | - | power transformer | VITROPERM 500 | industrial | epoxy coating |
| L2020-W409 | 20 | 12.5 | 8 | 22.6 | 10.3 | 10.2 | toroidal | 0.24 | 5.1 | 9 | 55.2 | 0.25 | 13.6 | 0.51 | EMC | VITROPERM 500 | industrial | plastic casing |
| L2020-W450 | 20 | 12.5 | 8 | 22.6 | 10.3 | 10.2 | toroidal | 0.24 | 5.1 | 9 | 14.3 | 1.5 | 9.1 | 2.2 | EMC | VITROPERM 500 | industrial | plastic casing |
| L2020-W767 | 20 | 15 | 8 | 22.6 | 10.3 | 10.2 | toroidal | 0.16 | 5.5 | 6.5 | - | - | - | - | Magnetic amplifier, Spike Blocker | VITROPERM 500 | industrial | plastic casing |
| L2020-W768 | 20 | 12.5 | 8 | 22.6 | 10.3 | 10.2 | toroidal | 0.24 | 5.11 | 9 | - | - | - | - | Magnetic amplifier, Spike Blocker | VITROPERM 500 | industrial | plastic casing |
| L2021-V283 | 21.1 | 16.7 | 6.2 | 24.5 | 13.7 | 8.7 | toroidal | 0.11 | 5.94 | 4.8 | - | - | - | - | Residual Current Measurement | VITROPERM 500 | industrial | plastic casing |
| L2022-V323 | Datasheet (English) 3d Model (English) | - | - | - | 24.9 | 11.6 | 16 | toroidal | 0.41 | 5.7 | 17.2 | 30 | 1.2 | 15.9 | 1.9 | EMC | VITROPERM 500 | automotive | plastic casing |
| L2022-V324 | Datasheet (English) 3d Model (English) | - | - | - | 24.9 | 11.6 | 16 | toroidal | 0.41 | 5.7 | 17.2 | 90.6 | 0.3 | 20.6 | 0.6 | EMC | VITROPERM 500 | automotive | plastic casing |
| L2022-V424 | Datasheet (English) 3d Model (English) | - | - | - | 24.9 | 11.6 | 16 | toroidal | 0.39 | 5.75 | 16 | 86.6 | 0.3 | 29.1 | 0.5 | EMC | VITROPERM 550 HF | automotive | plastic casing |
| L2022-W836 | 22.3 | 17.3 | 6.2 | 23.8 | 15.8 | 7.8 | toroidal | 0.12 | 6.22 | 5.67 | - | - | - | - | 50Hz/60Hz current transformer, Residual Current Measurement | VITROPERM 500 | industrial | epoxy coating |
| L2022-W867 | 22 | 17 | 6 | 24 | 15.2 | 8 | toroidal | 0.12 | 6.1 | 5.4 | 16.4 | 0.6 | 4.3 | 0.86 | EMC | VITROPERM 500 | industrial | epoxy coating |
| L2022-W868 | 22 | 17 | 10 | 24 | 15.2 | 12 | toroidal | 0.2 | 6.1 | 9 | 27.4 | 0.4 | 5.3 | 0.86 | EMC | VITROPERM 500 | industrial | epoxy coating |
| L2024-V256 | 24.4 | 20.9 | 5.2 | 27.2 | 18.2 | 7.5 | toroidal | 7.28 | 7.12 | 3.81 | - | - | - | - | EMC, Residual Current Measurement | VITROPERM 500 | industrial |
| L2025-V313 | Datasheet (English) 3d Model (English) | - | - | - | 28.1 | 13.1 | 13.1 | toroidal | 0.37 | 6.4 | 17.4 | 23.7 | 1.3 | 12.6 | 2.1 | EMC | VITROPERM 500 | automotive | plastic casing |
| L2025-V314 | Datasheet (English) 3d Model (English) | - | - | - | 28.1 | 13.1 | 13.1 | toroidal | 0.37 | 6.4 | 17.4 | 70.2 | 0.3 | 16.2 | 0.6 | EMC | VITROPERM 500 | automotive | plastic casing |
| L2025-V321 | Datasheet (English) 3d Model (English) | - | - | - | 28.6 | 16.7 | 14.8 | toroidal | 0.2 | 7.1 | 10.6 | 12.1 | 1.4 | 6.4 | 2.3 | EMC | VITROPERM 500 | automotive | plastic casing |
| L2025-V322 | Datasheet (English) 3d Model (English) | - | - | - | 28.6 | 16.7 | 14.8 | toroidal | 0.2 | 7.1 | 10.6 | 36.4 | 0.3 | 8.3 | 0.7 | EMC | VITROPERM 500 | automotive | plastic casing |
| L2025-V344 | 25 | 16 | 10 | 27.9 | 13.6 | 12.5 | toroidal | 0.4 | 6.4 | 17 | 69.9 | 0.3 | 24 | 0.6 | EMC | VITROPERM 550 HF | industrial | plastic casing |
| L2025-V349 | 25 | 16 | 10 | 27.9 | 13.6 | 12.5 | toroidal | 0.4 | 6.4 | 17 | 8.6 | 3.23 | 7.58 | 3.67 | motor protection, EMC | VITROPERM 712 | industrial | plastic casing |
| L2025-V414 | Datasheet (English) 3d Model (English) | - | - | - | 28.1 | 13.1 | 13.1 | toroidal | 0.36 | 6.4 | 17 | 71.2 | 0.3 | 24.4 | 0.6 | EMC | VITROPERM 550 HF | automotive | plastic casing |
| L2025-V422 | Datasheet (English) 3d Model (English) | - | - | - | 28.5 | 16.7 | 14.8 | toroidal | 0.2 | 7.1 | 10 | 35.7 | 0.3 | 12 | 0.6 | EMC | VITROPERM 550 HF | automotive | plastic casing |
| L2025-W375 | 25 | 16 | 10 | 27 | 14 | 12 | toroidal | 0.36 | 6.44 | 17 | 16 | - | - | - | power transformer | VITROPERM 500 | industrial | epoxy coating |
| L2025-W380 | 25 | 16 | 10 | 27.9 | 13.6 | 12.5 | toroidal | 0.4 | 6.4 | 17 | 67 | 0.32 | 15.5 | 0.65 | EMC | VITROPERM 500 | industrial | plastic casing |
| L2025-W451 | 25 | 16 | 10 | 27.9 | 13.6 | 12.5 | toroidal | 0.4 | 6.4 | 17 | 17.1 | 1.8 | 11.5 | 2.7 | EMC | VITROPERM 500 | industrial | plastic casing |
| L2025-W523 | 25 | 20 | 10 | 27.6 | 17.4 | 12.8 | toroidal | 0.2 | 7.1 | 10 | 28.4 | 0.41 | 7.3 | 0.84 | Residual Current Measurement | VITROPERM 500 | industrial | plastic casing |
| L2025-W621 | 25 | 20 | 10 | 27.3 | 17.5 | 12.3 | toroidal | 0.19 | 7.1 | 9.9 | 9 | 1.7 | 5.8 | 2.8 | EMC | VITROPERM 500 | industrial | epoxy coating |
| L2025-W622 | 25 | 20 | 10 | 27.3 | 17.5 | 12.3 | toroidal | 0.19 | 7.1 | 9.9 | 22.5 | 0.7 | 7.2 | 0.99 | EMC | VITROPERM 500 | industrial | epoxy coating |
| L2025-W835 | 25 | 20 | 6.2 | 26.5 | 18.6 | 7.8 | toroidal | 0.12 | 7.07 | 6.4 | - | - | - | - | 50Hz/60Hz current transformer, Residual Current Measurement | VITROPERM 500 | industrial | epoxy coating |
| L2025-W980 | 25 | 16 | 10 | 27.9 | 13.6 | 12.5 | toroidal | 0.4 | 6.4 | 17 | - | 9.6 | 3.1 | - | motor protection, EMC | VITROPERM 250 | industrial | plastic casing |
| L2030-V129 | 30 | 20 | 15 | 32.8 | 17.5 | 17.8 | toroidal | 0.57 | 7.9 | 33 | 15.7 | 3.1 | 14.1 | 3.9 | EMC | VITROPERM 500 | industrial | plastic casing |
| L2030-V315 | Datasheet (English) 3d Model (English) | - | - | - | 33.1 | 17 | 18.1 | toroidal | 0.58 | 7.9 | 33.6 | 30.5 | 1.6 | 16.2 | 2.6 | EMC | VITROPERM 500 | automotive | plastic casing |
| L2030-V316 | Datasheet (English) 3d Model (English) | - | - | - | 33.1 | 17 | 18.1 | toroidal | 0.58 | 7.9 | 33.6 | 90.4 | 0.4 | 20.8 | 0.8 | EMC | VITROPERM 500 | automotive | plastic casing |
| L2030-V376 | 30 | 20 | 10 | 33 | 17.6 | 12.5 | toroidal | 0.39 | 7.85 | 22.4 | 58.9 | - | 21.2 | 0.74 | EMC | VITROPERM 550 HF | industrial | plastic casing |
| L2030-V416 | Datasheet (English) 3d Model (English) | - | - | - | 33.1 | 17 | 18.1 | toroidal | 0.57 | 7.8 | 33 | 94.4 | 0.4 | 31.7 | 0.7 | EMC | VITROPERM 550 HF | automotive | plastic casing |
| L2030-W358 | 30 | 20 | 10 | 32.8 | 17.6 | 12.5 | toroidal | 0.4 | 7.9 | 23 | 15.5 | 2.1 | 11.1 | 3.1 | EMC | VITROPERM 500 | industrial | plastic casing |
| L2030-W376 | 30 | 20 | 15 | 32.3 | 17.8 | 17.8 | toroidal | 0.57 | 7.85 | 33 | 20 | - | - | - | power transformer | VITROPERM 500 | industrial | epoxy coating |
| VITROVAC | Co-based amorphous alloy with highest magnetic permeability and a saturation induction of ≤ 1.0 T |