Ef Ferrite Cores and Bobbin Transformer

/ Ef Ferrite Cores and Bobbin Transformer
  • Ef Ferrite Cores and Bobbin Transformer
  • MnZn Ferrite E Core EE55 EE28 EE25
  • Soft Ferrite E Cores EE361811
  • EE22, EE25, EE25.4, EE28, EE35, EEL19 Ferrite Transformer Cores
  • EE8, EE11, EE10, EE19, EE20 Transformer EE Ferrite Core wo Plastic
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  •  Ef Ferrite Cores and Bobbin Transformer, High Magnetic Permeability Ferrite EE EF Core Magnets, Soft Ferrite Transformer Cores w/o Plastic, EE Mn-Zn Ferrite Core Iron Powder Core For Transformer, E Shape Transformer Core in China, EE Type Soft Magnetic Core Mn-Zn Ferrite, E Core EE Core, Soft Ferrite Cores China Factory Supplier

    Ef Ferrite Cores and Bobbin Transformer Features
    Model Number EE8, EE11, EE10, EE19, EE20, EE12, EE13, EE5, EE6, EE12, EE13, EE5, EE6, EE16A, EE22, EE25, EE25.4, EE28, EE35, EEL19
    Type Soft
    Composite Ferrite Magnet
    Shape EE EF
    Application Industrial Magnet
    Tolerance ±10%
    Material Mn-Zn Ferrite Core
    Certification ISO9001:2015
    Frequency 1khz-1mhz
    Curie TC 140°C-265°C
    Type of payment T/T, Western Union, L/C, Paypal,etc. D/P.
    AL value As customer’s requirements.
    Why choose us
    1.30 years experiences soft ferrite core manufacturer.
    2.Good quality products with factory price.
    3.Enough production capacity provide good delivery time.
    4.Special products customized accepted.
    5.Good aftersales services.


    EE / EF cores are used as power shapes in electric circuits such as inductors and transformers. They are an ideal material to use at low frequencies where large inductances are required. The cores offer the advantage of material permeability and have a uniform cross-sectional area. They do not have any gaps, so the leakage is very low. This is why the toroidal core windings are commonly used in current and instrument transformers.

    We are an acclaimed name engaged in offering our precious clients a superior quality range of Soft Ferrite Cores. The offered cores are widely used in transformers and conductors. These cores are sourced from most authentic vendors in the market and are manufactured with the help of finest grade material and contemporary machines in compliance with set industry norms. Clients can avail these cores from us at affordable rate.

    EE series MnZn transformer core are commonly used for switching power supply,main power transformer and various kinds of electronic instruments, etc. It is high permeability, low core loss factor, and low price and High Frequency.This one is made by MnZn material which permeability from 2000 to 15000.

    High magnetic permeability
    Prevent eddy current
    Suitable for frequency above 1 MHz

    The necessary calculations for inductance design will
    be given more detailed in this section with an
    example using the related documents and studies [6-
    9, 13, 14, 17]. The electromagnetic equations of
    inductance, core structures, and necessary
    calculations for wire effect and structures as well as
    power loses relation are also investigated.
    The main component in inductance design is the core structure where to be used for magnetic flux flow is provided. Air cores, iron cores, ferrite and powder cores are known inductance cores. Ferrite and powder cores are preferred for high switching frequency power converters having less loses and saturation. Ferrite cores are cheaper and have low power losses at higher switching frequencies but the flux level is lower. These cores are obtained from Mn-Zn and Ni-Zn alloys and have F, P, R, K types depending on the alloy’s ratios [8]. Also, the air gap in cores makes it preferable against the saturation.
    Powder cores have an air gap dispersed in the material due to the nature of the material from which they are produced, and this feature is ideal for switching rectifiers. In addition to a soft saturation characteristic, this feature provides a lot of desigconvenience, such as small core volume, overcurrent protection, low heat, and powder cores provide high levels of DA magnetic force characteristics without saturation.
    The other matter for core selection is core geometry and it is possible to find pot, E shape, toroid cores and the others in manufacturer catalogues depending on
    their applications. Pot cores, when assembled are nearly surrounded the wound bobbin and this aids in shielding the coil from picking up EMI from outside
    sources. Double slab and RM cores are also similar to pot cores but are designed to minimize board space, providing at least a 40 % savings in the mounting
    area. EP Cores are round centre-post cubical shapes which enclose the coil completely except for the printed circuit board terminals. PQ cores are designed especially for switched mode power supplies. The design provides an optimized ratio of volume to the winding area and surface area. E cores are less expensive than pot cores and have the advantages of simple bobbin winding plus easy to assemble. Also, E cores can be mounted in different directions, and if desired, they provide a low profile. Ferrite EF Magnetic Cores EE25/ EE13/ EE11
    EC, ETD, EER and ER shapes are a cross between E cores and pot cores. Like E cores, they provide a wide opening on each side. Toroid cores are economical to manufacture; hence, they are the least costly of all comparable core shapes. Since no bobbin is required, accessory and assembly costs are nil, but winding is done on toroidal winding machines. Ferrite geometries offer a wide selection in shapes and sizes.
    To choose a core for power applications the parameters in Table 1 can be used and evaluated. Different shapes of Ferrite core types areshown MnZn Ferrite E Core EE55/28/25
    E cores are more advantageous in terms of core, coil and winding prices and easy to use, also with cross-sectional area and window spacing of different sizes. E cores have a double flux path which reduces their dimensions and this allows for small footprint and easy installation on printed circuits. E cores air gap can be adjusted, but the fringe fluxes formed in cores with air gap lead to flow losses and eddy current (Eddy) losses on winding wires as shown in Figure 3 (a). Therefore, Kool Mµ E powder cores with an equal air gap as shown in Figure 3 (b) are more preferred. The 10.500 gauss saturation level of the Kool Mµ E powder cores provides higher energy storage capability that they can be achieved with the air gap ferrite E-cores, which means a smaller core size.  Ferrite EE Magnetic Core EE25.4/EE10/EE06/EE05
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