
Customized Size Ferrite Cores Power Coil for Current Transformer Permalloy Ring Core. Customizable Size & Structure: Iron cores can be customized according to user's size and performance requirements. High Permeability Material: Uses 1J85 grade Permalloy strips with super high initial permeability and low coercivity. Energy Harvesting Application: Suitable for weak magnetic fields, energy harvesting, and high sensitivity transformers. Excellent Corrosion Resistance: Good corrosion resistance, suitable for outdoor and humid environments. OEM/ODM/OPM Service: Factory accepts customized products with experienced R&D team for personal services. ISO9001 Quality Control: Production follows ISO9001 with regular inspections and comprehensive quality tests. Fast Customized Lead Time: Customized products usually take 10-15 days depending on design and quantity. Low Iron Loss Performance: Very low iron loss under weak magnetic field conditions for efficient operation.