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.
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MOST COMMON SOFT FERRITES LEWIS HOWES
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.
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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.
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ADVANTAGES DISADVANTAGES
• Carry magnetism effectively with low • Have different properties such as
losses inductance and permeability so care is
required to get a correct material type
• Can handle alternating currents
• It will be expected that the customer
knows exactly what they require
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Applications for Soft Ferrite Cores
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General Shapes of Soft Ferrite Cores
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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. +91-11 4939
[email protected]
8800
www.cosmoferrites.com
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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.
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