FAQ Product CategoriesCapacitors Inductors (Coils) EMC Components RF Components Voltage / Current / Temperature Protection Devices Sensors and Sensor Systems Ceramic Switching / Heating, Piezo Components, Contactors, Buzzers and Microphones Transformers Ferrites and Accessories Power Supplies, Sources and Loads Magnets Product Categories Capacitors Inductors (Coils) EMC Components RF Components Voltage / Current / Temperature Protection Devices Sensors and Sensor Systems Ceramic Switching / Heating, Piezo Components, Contactors, Buzzers and Microphones Transformers Ferrites and Accessories Power Supplies, Sources and Loads Magnets Facet FAQ Search List - Product Categories L1 Product CategoriesPTC Thermistors as Heating Elements Product Categories PTC Thermistors as Heating Elements Facet FAQ Search List - Product Categories L2 Facet FAQ Search List - Product Categories L3 Product Categories 製品カテゴリ Produktkategorien 产品类别 CategoriesProducts Structure, material Troubleshooting Categories Products Structure, material Troubleshooting 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 Supplies, Sources and LoadsMagnets Product Categories L2 Product Categories Product Categories L3 Product Categories FAQ Category CategoriesProductsMeasurementElectrical CharacteristicsEnvironmental CompatibilityOperation manualOperational descriptions by objectiveProduct Quality and Service LifeReliabilityStructure, materialTechnical support toolsTroubleshootingOthersAbout myTDK Products Q. What is the influence of part thickness on PTC performance? PTC Thermistors as Heating Elements Structure, material Q. When should Ag or Al metallization be used as PTC electrode? PTC Thermistors as Heating Elements Troubleshooting Q. How is Ag migration avoided? PTC Thermistors as Heating Elements