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Soft ferrite magnets are widely used in electrical applications due to their low coercivity. Soft ferrite magnets are commonly used in power transformers. Microwaves, radio antennae, and inductors are some of the other applications for soft ferrite magnets. Soft ferrite magnets may readily and swiftly change magnetic orientation.<br>
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Soft Ferrites: Properties and applications PRESENTED BY RAHUL PAL
Discussion HIGHLIGHTS Short Introduction Common soft ferrites Properties Advantages & Disadvantages Applications Shapes www.cosmoferrites.com
Overview Low coercivity magnets are classified as soft ferrite magnets. What exactly does this mean? The capacity of a magnetic substance to tolerate external magnetic forces without becoming demagnetized is measured by coercivity. www.cosmoferrites.com
MOST COMMON SOFT FERRITES Manganese-zinc ferrite (MnZn, also known as MnaZn(1-a)Fe2O4). MnZn has higher permeability and saturation induction than NiZn. NiZn (NiaZn(1-a)Fe2O4) is a nickel-zinc ferrite (NiZn). NiZn ferrites have higher resistivity than MnZn ferrites and are hence better suited for frequencies above 1 MHz. LEWIS HOWES www.cosmoferrites.com
Properties They have a low level of coercion. The low coercivity of the material means that its magnetization may readily reverse direction without squandering much energy (hysteresis losses), while the high resistivity of the material avoids eddy currents in the core, which is another cause of energy loss. They are widely utilized in the cores of RF transformers and inductors in applications such as switched-mode power supply and loopstick antennas used in AM radios because of their comparably low losses at high frequencies. www.cosmoferrites.com
ADVANTAGES DISADVANTAGES • Carry magnetism effectively with low losses • Can handle alternating currents • Have different properties such as inductance and permeability so care is required to get a correct material type • It will be expected that the customer knows exactly what they require www.cosmoferrites.com
Applications for Soft Ferrite Cores www.cosmoferrites.com
General Shapes of Soft Ferrite Cores www.cosmoferrites.com
Thank You If you are looking for Mnzn based soft ferrite cores for your transformers or Application, you will want to source them from a well-established and ISO 9001 certified manufacturer. Cosmo Ferrites Limited has been manufacturing quality Soft Ferrites of various types for many years. sales@cosmoferrites.com +91-11 4939 8800 www.cosmoferrites.com