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Nanocrystalline Cores

For Common Mode Filters, Current Transformers, and MagAmps

Nanocrystalline cores are a choice solution for common mode choke (CMC) applications as they exhibit high permeability, low power loss, and high saturation. Common mode chokes made with nanocrystalline material are used in a wide range of applications including switched-mode power supplies (SMPS), uninterruptible power supplies (UPS), solar inverters, frequency converters, EMC filters, EV chargers, and multiple automotive and welding applications. When compared to ferrite cores, nanocrystalline cores provide a wider operational temperature range and significantly higher impedance at high frequencies.

Key Characteristics

  • Composition: Fe•Si•Nb•Cu•B
  • Shapes: Toroid, Cut Toroid, Slotted Toroid, Cut Core
  • Sizes: 5 mm to 145 mm
  • Flux Density (T): 1.25
  • Coating Color: Blue, Green

Due to the high permeability of nanocrystalline cores, common mode chokes, current transformers, and magnetic amplifiers (magamps) can be smaller in size and handle higher current. Saturation induction of 1.25T and a wide temperature range mean that CMCs made with nanocrystalline cores are less vulnerable to current imbalance and loss of performance at high temperature. The material's low AC losses result in excellent efficiency, and the option of durable cases - available in polyester (<130°C) and rynite polyester (<155°C) - makes cores suitable for winding with thick wire. 

Magnetics is expanding our nanocrystalline product line for the following applications:

  • AC Current Transformer
  • Zero Phase Current Transformer
  • DC Immunity Current Transformer
  • Hall Effect Sensors with cut current transformer cores

For assistance in selecting a nanocrystalline core for any of these applications, Contact Magnetics.

For more information on Magnetics' new nanocrystalline cores, view our technical bulletin.

View Nanocrystalline Material Property Curves including Impedance vs. Frequency, Permeability vs. Temperature, and B-H Loop.

Nanocrystalline Part Number Identification

How To Order: Magnetics Tape Wound Cores

Part Number AL µH/T2 Core Area
cm2		 Path Length
cm		 Bare OD
mm		 Bare ID
mm		 Bare HT
mm		 Boxed
OD max
mm		 Boxed
ID min
mm		 Boxed
HT max
mm
10 kHz
1.0V
(±30%)		 100 kHz
1.0V
(Min)
 CMC012008005H85     0.07 3.1 12.0 8.0 4.5 14.3 6.6 7.0
CMC016010006H 43.0 9.0 0.15 4.10 16.0 10.0 6.0 17.8 8.2 7.9
CMC020012008H 61.5 13.1 0.27 5.02 20.0 12.0 8.0 22.6 10.6 10.0
CMC025016010H 65.5 14.3 0.37 6.43 25.0 16.0 10.0 27.5 13.8 12.6
CMC030020010H 59.3 13.0 0.41 7.85 30.0 20.0 10.0 33.0 17.6 13.2
CMC030020012H 55.0 18.6 0.49 7.90 30.0 20.0 12.0 34.0 18.0 15.2
CMC030020015H 88.0 20.0 0.63 7.90 30.0 20.0 15.0 33.6 17.7 17.8
CMC040025015H 101 23.1 0.92 10.20 40.0 25.0 15.0 44.2 21.6 18.9
CMC040032015H 47.2 10.8 0.50 11.30 40.0 32.0 15.0 45.5 28.5 18.8
CMC100080020H 57 15.7 1.57 28.2 100.0 80.0 20.0 104.5 75.8 23.4
Part Number Cross Section
cm2		 Path Length
cm		 D dim.
mm		 E dim.
mm		 F dim.
mm
MNCC0004 1.24 10.7 15.0 28.0 51.0
MNCC0006P3 1.6 12.8 20.0 31.0 53.0
MNCC0008 2.0 11.7 20.0 35.0 53.0
MNCC0010 1.8 15.4 20.0 35.5 63.0
MNCC016A 2.3 15.1 25.0 35.5 62.5
MNCC0020Y 2.8 16.2 30.0 35.5 73.0
MNCC0025 3.6 17.9 25.0 42.0 84.0
MNCC0032 3.5 17.5 30.0 41.0 82.0
MNCC0063 4.4 23.2 30.0 53.5 105.0
MNCC0125 6.1 26.7 35.0 63.5 122.0
MNCC0160 16.6 27.3 40.0 63.0 122.0
MNCC0320 9.5 30.5 50.0 79.0 131.0
MNCC1000 23.0 42.2 85.0 106.0 171.0