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Products » Amorphous and nanocrystalline Cores » Toroidal amorphous and nanocrystalline MSTATOR cores » Low-profile output choke cores with distributed gap »

Low-profile output choke cores with distributed gap

Low-profile MSC cores are made of thin (20 µm) Fe-based amorphous ribbon. Due to their high saturation induction (1.5 T) such cores have a higher inductance coefficient and the opportunity to operate with a increased bias current. Distributed gap obtained through a special thermal treatment mode allows to reduce losses and cost and also to increase technological effectiveness.

Chokes, based on MSC series cores have smaller number of winding turns and respectively,lower wire losses and better opportunities for DC bias as compared to conventional soft magnetic materials: ferrites, magnetodielectrics and permalloys. тки, способствует снижению потерь, высокой технологичности, низкой стоимости.

A new low-profile MSC series for small inductors is an ideal choice for mobile devices, miniature DC/DC converters, cell phones, laptops, adapters, car electronics and so on.


Ribbon wound magnetic core is placed into a protective container made of aluminum alloy and mechanically fixed with silicone sealant.The container has rounded edges and is designed for direct winding of a thick wire. Moreover, the container provides a reliable mechanical protection of amorphous material and preservation of its properties. All materials comply with . UL94V-1/0.

Technical characteristics of MSC series

The advantages of MSC cores:
  • Ribbon thickness 20±2 µm
  • Induction amplitude, Вm(25°C) 1,5 Т
  • Curie temperature, Tc 420°C
  • Crystallization temperature 530°C
  • Operating temperature range от –60°C до +125°C
  • Density 7,3 г/см³
MSC series
Type Dimensions1 with a container]
(без контейнера) (D-d-H)
Mean line length
Winding window area
AL 2)
(µH/ T²)
Permeability μ Maximum magneto-motive force DCB 3)(А*T.)
Nomin. Nomin. Nomin. Nomin. ±20% Nomin. Max.
MSC0510 4.7-1.9-1.4
10.4 0.85 2.83 0.026 245 29.1
MSC0620 6.4-2.6-2.4
14.13 2.55 5.3 0.058 245 39.6
MSC0715 6.8-2.6-1.9
14.7 2.17 5.3 0.047 245 41.1
MSC0725 6.9-2.5-3.0
14.7 3.61 4.9 0.079 245 41.1
MSC0815 8.4-3.6-1.9
18.8 2.55 10.2 0.043 245 52.6
MSC0830 8.5-3.5-3.5
18.8 5.10 9.6 0.058 245 52.6
MSC1020 10.7-4.3-2.5
23.5 4.25 14.5 0.058 245 65.8
MSC1030 10.8-4.3-3.6
23.5 6.48 14.1 0.087 245 65.8
MSC1045 10.55-5.81-5.50
25.59 5.94 33.2 0.071 245 71.6
1) Outer diameter – Inner diameter – Height.
2) At F=100 kHz, Urms=1 В, 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

Designation in technical documentation

The example of MSC series ordering code:
MS C 0510
, where:
C– application (Choke );
05 - outer diameter, mm;
10 - height

Stock availability


You can check MSC cores stock availability, actual prices and send the order in our online-shop.

09.10 19 

LEPCOS invites you to attend the Stand C23 at ChipEXPO 2019 exhibition, which will be held from 16 to 18 October 2019 in Moscow in the Expocentre, in the pavilion "Forum".


26.06 19 
According to the results of 2018 Lepcos has received "best ferrites seller 2018" seal of excellence from TDK company.

18.04 19 
Dear colleagues! We would like to draw your attention to the fact that, since December 2018, the package content of electrolytic capacitors has been changed.


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