Ferrite magnets are the most widely used magnet type because of their low cost of manufacture and high coercive properties.
Features:
250 degrees C maximum temperature
(for higher temperature applications see cast alnico magnets )
Economical
High coercivity - do not lose their magnetic properties easily
Hard and brittle
There are 2 main forms:
Sintered Ferrite
Produced from strontium and has anisotropic properties (the magnet is much stronger along one axis at the expense of other axes). Usually formed by wet pressing. Applications:
Audio / television
Holding / clamping
Loud speakers
Reed switches
Security systems
Sump plugs
Water conditioners
