Kool Mu MAX Cores

Kool Mµ® MAX is the next generation of sendust cores from Magnetics. We supercharged our low core loss Kool Mµ material with 50% better DC bias performance for better power handling. Use of copper wire is minimized by maintaining inductance using less turns, resulting in savings in overall component cost. With its super low losses, Kool Mμ MAX does not mimic the temperature rise problems found in iron powder cores. Improve inductor efficiency at a fraction of the cost of High Flux with Kool Mµ MAX.

Key Characteristics

  • Composition: Al • Si • Fe
  • Shapes: Toroids
  • Sizes: 13.5 mm to 134 mm
  • Permeability: 26µ, 40µ, 60µ
  • Coating Color: Black

Property Curves

View Kool Mµ MAX Material Property Curves including Normal Magnetization curves, Core Loss Density curves, Permeability versus Temperature curves, Permeability versus DC Bias curves, and Permeability versus Frequency curves.

For more information on Magnetics' new Kool Mµ MAX toroids, view our technical bulletin.

How To Order Magnetics Powder Cores: Kool Mµ MAX Cores

Core Data AL nH/T2 (nominal) Le Path Length
mm
Ae Cross Section
mm2
Ve Volume
mm3
OD max
mm
ID min
mm
HT max
mm
26µ 40µ 60µ
050 12   27 31.2 10.9 340 13.5 6.98 5.52
120 15   35 41.2 19.2 791 17.3 9.52 7.12
380 19   43 41.4 23.2 960 18.1 9.01 7.12
206 14   32 50.9 22.1 1,120 21.1 12 7.12
310 19   43 56.7 31.7 1,800 23.7 13.3 8.3
350 22   51 58.8 38.8 2,280 24.4 13.7 9.66
930 32   75 63.5 65.4 4,150 27.69 14.1 12
548 28   61 81.4 65.6 5,340 33.66 19.4 11.5
585 16   38 89.5 46.6 4,150 35.18 22.5 9.78
324 24   56 89.8 67.8 6,090 36.71 21.5 11.4
254 35   81 98.4 107 10,600 40.77 23.3 15.4
089 37   86 116 134 15,600 47.63 27.88 16.2
438 59   135 107 199 21,300 47.63 23.3 19
715 32   73 127 125 15,900 51.69 30.93 14.4
109 33   75 143 144 20,700 58.0 34.7 14.9
195 60   138 125 229 28,600 58.0 25.6 16.2
620 82   189 144 360 51,800 62.9 31.7 25.9
740 88   204 184 497 91,400 75.0 44.4 35.9
866 30   68 196 176 34,500 78.9 48.2 13.9
906 37   85 196 221 43,400 78.9 48.2 17.1
102 48   111  243 358 86,900 103.0 55.75 17.9
337 68      324 678 220,000 134.0 77.19 26.8