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PC40/ PC44 Soft Ferrite EE EF Cores Features
EF Ferrite Core
Certificate:ISO9001 ROHS CE Factory Location: Zhejiang China
Custom Made: Accepted MOQ: Small Quantity Accepted
Lead Time: Less than 20 days sample can be provided within 3 days
Package: Carton box on the Pallet
Shipment: Sea freight , Air freight, DHL Fedex
Why choose Fecobo EF Ferrite Core
we have more than 5000 transformer bobbin and ferrite core toolings. plenty of types available
we can provide free sample for testing within 3 days
we as the most reputated transformer bobbin and ferrite core supplier served customer in more than 80 countries.
we has own tooling technical team to meet the special model transformer bobbin and ferrite core requirements
Click to Download MnZn FERRITE CORE EE EF TYPE SIZE PDF
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.
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 . 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 design convenience, such as small core volume, overcurrent protection, low heat, and powder cores provide high levels of DA magnetic force characteristics without saturation. EE EF Ferrite Core Industrial Magnet EE42/21/15
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 MnZn Power Ferrite Magnet
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. High Magnetic Permeability Ferrite EE EF Core Magnets
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