LM series cores (μ=8 000) on the base of nanocrystalline material NANOPERM are applied in EMC filters with a large amount of asymmetrical interference currents (as an example, in inverter drives).
Among main advantages of LC series in comparance with ferrites one can note:
- Bsat is 3 times higher at the same permeability values
- small size and low weight
- wideband, particularly, they provide better attenuation at high frequencies
- high maximum operating temperature (>120 °C).
The outer coating - a plastic protective case (the material QMFZ2 E41871, corresponding OBJS2 E209169 и QMFZ2 E41938).
Size type nomenaclature of LM cores produced by Magnetec.
| Size type |
Core's size [mm] |
Size in a protective case [mm] |
μ @10kHz |
Lfe [sm] |
Afe [sm²] |
Al @10kHz [ µH] |
A quantity in a factory package, pcs. |
| M-822 | 12,5 x 10 x 5 | 14,3 x 8,2 x 7 | 14k | 3,5 | 0,05 | > 1,67 - 3,32 | 990 |
| M-709 | 16 x 10 x 6 | 18,2 x 7,8 x 8,4 | 8k | 4 | 0,125 | > 2,2 - 4,4 | 990 |
| M-449 | 25 x 16 x 10 | 28 x 13 x 12,6 | 8k | 6,34 | 0,338 | > 3,75 - 7,49 | 378 |
| M-450 | 30 x 20 x 10 | 32,7 x 17,8 x 12,6 | 8k | 7,75 | 0,375 | > 3,41 - 6,81 | 210 |
| M-831 | 40 x 20 x 15 | 43,3 x 22,5 x 18,5 | 8k | 10 | 0,83 | > 5,9 - 11,6 | 96 |
| M-451 | 40 x 32 x 15 | 43,1 x 28,8 x 17,4 | 8k | 11,26 | 0,45 | > 2,82 - 5,62 | 120 |
| M-452 | 63 x 50 x 30 | 68,7 x 44,1 x 35,0 | 8k | 17,40 | 1,60 | > 6,47 - 12,92 | 16 |
| M-453 | 80 x 63 x 30 | 86 x 56 x 36 | 8k | 22,21 | 1,90 | > 6,02 - 12,02 | 12 |
| M-689 | 100 x 80 x 10 | 104,2 x 74,8 x 14,6 | 8k | 28,17 | 0,78 | > 2,22 - 3,87 | |
| M-698 | 100 x 80 x 30 | 104,5 x 74,5 x 35,0 | 8k | 28,17 | 2,32 | > 5,55 - 11,09 | 12 |
| M-454 | 102 x 76 x 25 | 108,1 x 70,0 x 30,3 | 8k | 27,76 | 2,41 | > 6,10 - 12,19 | 12 |
| M-824 | 120 x 80 x 20 | 125 x 76 x 25 | 8k | 30,99 | 2,96 | > 6,73 - 13,44 | |
| M-455 | 130 x 100 x 30 | 135 x 94,6 x 33,8 | 8k | 35,92 | 3,33 | > 6,53 - 13,04 | 4 |
| M-456 | 160 x 130 x 30 | 165,2 x 122,8 x 33,2 | 8k | 44,98 | 3,50 | > 5,48 - 10,94 | 5 |
| M-751 | 236,5 x 201 x 30 | ОВАЛ 305/147 x 249/95 x 37 |
8k | 68,5 | 3,94 | > 4,05 - 8,08 | 2 |
| M-582 | 300 x 250 x 30 | 305 x 246,5 x 35 | 8k | 86,4 | 4,94 | > 4 - 8 | 1 |
