This is a small diameter hollow cylindrical ring magnet made of rare earth neodymium iron boron, N40 grade, nickel plated on the surface, axial magnetization. How small is this magnet? Outer diameter: 2mm, inner hole: 1.2mm, height: 3.7mm, hole depth: 1.8mm, not straight hole. It is applicable to precision electronics and electronic components....
This product is a hollow cylindrical magnet, a cylindrical holed samarium cobalt magnet, and it is also a rare earth magnet. Compared with a neodymium hollow cylindrical magnet, it is more resistant to high temperature, so the application fields are different, which is also their biggest difference....