The MSC series toroidal cores are made of thin (25  microns) Fe-based amorphous ribbon. A unique combination of high saturation induction (1.5 T) and low losses makes them indispensable for all applications associated with the storage of energy. Distributed gap that is obtained by special thermomagnetic treatment regime helps to reduce losses, cost and size of the chokes and to make them more technological comparing to air gap products. High saturation induction, low loss and very high DC bias while maintaining high permeability distinguish MSC series magnetic cores from products made of traditional materials used for the output chokes, power factor correction chokes, smoothing chokes, flyback transformers, and so on.

 

CONFIGURATION:

Ribbon wound magnetic is placed into protective container of aluminium alloy and mechanically fixed with silicone sealant. The container is coated with insulation, it has rounded edges and is designed for direct winding. The container provides reliable mechanical protection and preservation of amorphous material's properties. All materials comply with UL94V-1 / 0.

 

KEY FEATURES OF THE AMORPHOUS MATERIAL:

  • Ribbon thickness 25 +-5 microns
  • Induction amplitude, Bm (25°C) 1.5 T
  • Curie temperature, Tc 420°C
  • Crystallization temperature 530°C
  • Operating temperature range -60°C  ... +125°C
  • Density 7.3 g/cm3
  • Max. biasing magnetic field 35 Oe (2800 A/m)

 

ADVANTAGES:

  • High saturation induction
  • High operating temperature
  • A significant reduction in the size of the components
  • Low loss
  • Ability to work with higher biasing current
  • Lesser number of winding turns due to high permeability

 

APPLICATION:

  • SMPS output chokes
  • Power factor correction chokes
  • Flyback transformers
  • Differential input chokes
  • SMPS smoothing chokes
  • DC/DC converter chokes

 

ENTRY EXAMPLE:

MSC-12S-N, where:

  • MS – MSTATOR;
  • C – application (choke);
  • 12 – outer diameter in mm;
  • S – cross section reference code;
  • N – thermal treatment without magnetic field

 

DIMENSIONS AND KEY FEATURES: 

TYPE

Dimensions in container1) (without a container)

 (mm)

Mean line length

Lm, mm

Cross-section

Ac, mm2

Winding window area

W a

(mm2)

Inductance

AL2)

(μH/turn2)

Magnetic permeability

μ

Max. magneto-motive force

DCB3)

(A*turn)

Nominal Nominal Nominal Nominal ±20% Nominal Max.
MSC-12S-N 12.7-7.3-5.7
(12.0-8.0-4.5)
31.4 8.5 41.8 0.088 258 88
MSC-15A-N 15.8-9.2-5.8
(15.0-10.0-5.0)
39.25 10.62 66.4 0.088 258 110
MSC-15S-N 15.8-9.2-6.8
(15.0-10.0-6.0)
39.25 12.75 66.4 0.105 258 110
MSC-18A-N 18.8-11.1-5.8
(18.0-12.0-5.0)
47.1 12.75 96.7 0.088 258 132
MSC-18S-N 18.8-11.1-6.8
(20.0-12.0-5.0)
47.1 15.3 96.7 0.105 258 132
MSC-20A-N 20.8-11.1-5.8
(20.0-12.0-5.0)
50.24 17 96.7 0.110 258 141
MSC-20S-N 20.8-11.1-6.8
(20.0-12.0-6.0)
50.24 20.4 96.7 0.132 258 141
  1. outer diameter – inner diameter - height
  2. @ F=100 kHz, Urms=1 V, T=25°C
  3. The limiting value of the magnetomotive force, defined as the product of the DC bias on the number of winding turns, at which the inductance factor AL is at least 60% of its initial value.
  4. Operating temperature range -60°C  ... +125°C

 

ADDITIONAL PARAMETERS AND CHARACTERISTICS: