Neodymium magnets offer the best value when comparing performance, size and cost. They are moderate in price, very strong magnetically, and typically allow for dimensional reductions. They have poor resistance to corrosion and should have a coating or plating applied. Consideration should be given to the grade of alloy when exposing Neodymium magnets to temperatures above ambient room. NdFeB has good resistance to external demagnetization fields because of its high Intrinsic Coercive Force. This resistance makes Neodymium magnets an excellent choice for electromechanical applications.