Strontium Ferrite Disc Magnet 18 x 10 mm
 
The strontium ferrite (SrFe) magnet offers an economical, robust solution where resistance to moisture, corrosion and temperature is more important than maximum strength for a given size. Unlike neodymium, ferrite does not require a protective coating and can be used at temperatures up to 250 °C, although its magnetic strength is lower for the same volume. The disc shape is easy to incorporate into flat assemblies, lids, sensors, loudspeakers and general attachment applications.
 
The The 18 x 10 mm size is practical for flat attachments, sensors, loudspeakers, guide components and general workshop applications. Suitable for outdoor use, damp environments, high-temperature applications and uses where low cost and operating stability are important.
 
Warning: The material is ceramic and brittle. Impacts or excessive clamping pressure can cause the magnet to chip or break. This is not a toy. Keep away from children and electronic equipment and devices sensitive to magnetic fields.