N45 (standard grade)

N45 refers to a standard grade of neodymium magnets, which are strong permanent magnets made from an alloy of neodymium, iron, and boron. The "N" stands for neodymium, and the number indicates the magnet's maximum energy product, measured in mega-gauss oersteds (MGOe). An N45 magnet has a relatively high strength, making it suitable for various applications like motors, sensors, and magnetic assemblies. These magnets can be found in everyday items such as refrigerator magnets, hard drives, and speakers, where strong magnetic fields are necessary in a compact size.