Magnetics Epcos (Siemens Matsushita Components), Germany TDK Ferroxcube
North West Laboratory

Engineering Center SZL and LEPCOS
— General representative of Epcos AG by ferrite in the CIS
— Official distributor and general representative for ferrites of
    TDK Electronics Europe Gmbh in the CIS
— Authorized distributor of Magnetics in Russia, CIS and Baltic countries
— Exclusive distributor of USM in Russia and CIS countries
— Official Distributor Temex Ceramics in Russia and CIS
Products » Ferroxcube Cores » Ferrite toroids ST with 8 segments »

Ferrite toroids ST with 8 segments

Cores segmentFerroxcube manufactures special form of segment ferrite core ( ST 90/40/30- 3C90) which represents ferrite toroid R90*40*30, formed by 8 segments. The toroid made of such segments is characterized by a range of advantages due to several gaps and is inexpensive solution when winding the storage chokes for high-voltage application.

Segment core8 air gaps allow sufficciently reduce the value of equivavalent permiability.8 air gaps allow sufficiently reduce the value of equivalent permeability. In such a case several small air-gap fringing flux seems to be smaller in comparison with one big gap that makes application of this core more effective.

Segment toroids on the base of power materials like 3C90 are suitable for power electronics needs. Particularly such cores can be used in welding machines transformers.

Segment toroids can be a good solution for chokes used in power supply filters working at high bias current level, uninterruptible power systems and output filters. Segment core is suitable for working in both at direct-current component and peak current .
Segment of the core_angle 45

Segment toroids

Structure of the ordering code

ST 90/40/30 - 3C90
ST — core configuration(segment toroid)
90/40/30 — core size (outer, inner diameters and core height in mm)
3C90— Ferrite material

unit of measurement — set of 8 segments.

You can ask our managers in order to get detailed information concerning segment toroids and opportunity for order .

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.


«North West Laboratory» © 1999—2020

Development & support — Marina Kutuzova