The MSC-G 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. High saturation induction, low loss and very high DC bias while maintaining high permeability distinguish MSC-G 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 core impregnated with a special compound and having fixed non-magnetic gap with a textolite filling is placed into hard protective container of glass-polyamide and mechanically fixed with silicone sealant. 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 thikness 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 60 Oe (4800 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-21S-NG, where:

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

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-NG 14.0-6.0-6.5
(12.0-8.0-4.5)
31.4 7.2 28.26 0.055 190 150
MSC-15S-NG 17.3-7.7-7.3
(15.0-10.0-4.5)
39.2 9.0 50.3 0.072 180 180
MSC-16S-NG 18.3-9.7-12.3
(16.0-12.0-10.0)
44.0 16.0 74.0 0.105 230 210
MSC-18S-NG 20.3-9.7-12.3
(18.0-12.0-10.0)
47.1 24.0 74.0 0.111 175 225
MSC-20S-NG 22.3-9.7-12.3
(20.0-12.0-10.0)
50.2 32.0 74.0 0.115 145 240
MSC-21A-NG 23.4-12.2-12.3
(21.0-14.5-10.0)
55.7 26.0 117 0.138 235 265
MSC-21S-NG 23.4-11.7-12.3
(21.0-14.0-10.0)
55.0 28.0 108.7 0.106 165 265
MSC-25S-NG 27.3-19.2-12.3
(25.0-21.5-10.0)
73.0 14.0 289.7 0.094 390 350
MSC-26S-NG 28.3-13.7-12.3
(26.0-16.0-10.0)
66.0 40.0 147.6 0.131 170 315
MSC-32S-NG 34.2-17.7-12.3
(32.0-20.0-10.0)
81.6 48.0 246.2 0.112 150 390
MSC-37S-NG 39.3-20.3-12.3
(37.0-23.0-10.0)
94.2 56.0 336.7 0.120 160 450
MSC-46A-NG 49.4-23.0-23.2
(46.0-27.0-20.0)
114.6 152.0 408 0.320 190 550
MSC-46S-NG 49.4-23.0-28.1
(46.0-27.0-25.0)
114.6 190.0 408 0.400 190 550
  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: