This is rectangle magnet with two-sides groove, is made of sintered ferrite, the resistivity of ferrite is much larger than that of elemental metal or alloy magnetic materials, and it also has higher dielectric properties. The magnet has a certain weight and easy to be broken, so must be careful when you pick it up. The specific size is 48mm in length, 25mm in width, 20mm in thickness, each side groove is 1mm deep. There is no plated because it has the resistivity of ferrite is much larger than that of elemental metal or alloy magnetic materials, and it also has higher dielectric properties.
The sample display of 48 x 25 x20mm ferrite block magnet with two-side groove:
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