FAQ Magnets Facet FAQ Search List - Product Categories L1 Facet FAQ Search List - Product Categories L2 Product Categories 製品カテゴリ Produktkategorien 产品类别 Facet FAQ Search List - Product Categories L3 Product Categories 製品カテゴリ Produktkategorien 产品类别 Products Environmental Compatibility (-) Structure, material Others Facet FAQ Search List - FAQ Category 1 Product Categories L1 Product CategoriesCapacitorsInductors (Coils)EMC ComponentsRF ComponentsVoltage / Current / Temperature Protection DevicesSensors and Sensor SystemsCeramic Switching / Heating, Piezo Components, Contactors, Buzzers and MicrophonesTransformersFerrites and AccessoriesPower SuppliesMagnets Product Categories L2 Product CategoriesFerrite MagnetsNeodymium Magnets Product Categories L3 Product Categories FAQ Category CategoriesProductsMeasurementElectrical CharacteristicsEnvironmental CompatibilityOperation manualOperational descriptions by objectiveProduct Quality and Service LifeReliabilityStructure, materialTechnical support toolsTroubleshootingOthersAbout myTDK Structure, material Q. What is residual magnetic flux density Br? Ferrite Magnets/Neodymium Magnets Q. What is permeance coefficient Pc? Ferrite Magnets/Neodymium Magnets Q. Does magnetic force (Br) increase in accordance with the coefficients in the ranges of minus temperatures? Ferrite Magnets/Neodymium Magnets Q. Do they demagnetize over time? Ferrite Magnets/Neodymium Magnets Q. What is low temperature demagnetization? Ferrite Magnets