V18050FJ is high‑performance 1K107B material soft ferrite toroidal core manufactured by VIIP. It features high initial permeability up to 80000, maximum permeability reaching 300000 and saturation magnetic flux density of 1250mT. With high electrical resistivity at 0.11Ω·m, it effectively suppresses eddy‑current loss. Operating temperature ranges from ‑50℃ to 150℃, Curie temperature 570℃ for reliable high‑temperature performance. Strict visual defect inspection standard guarantees consistent dimension and batch stability. This toroid core is ideal for winding common‑mode chokes, high‑permeability inductors and EMC noise‑filtering coils.

• Power supply EMC/EMI filter modules
• Common mode choke coils for industrial equipment
• Large‑size display screen power filter
• Medical equipment power filtering unit
• Switching power supply, UPS and inverter
• Audio‑video device anti‑interference components
• Instrument & measurement signal processing circuit
  

1. Wind common‑mode choke to restrain common‑mode electromagnetic noise on power lines
2. Build high‑permeability inductors for low‑frequency signal filtering
3. Suppress EMI interference in AC‑DC power conversion circuits
4. Improve power‑supply purity for large display, industrial and medical electronics
5. Serve as raw magnetic component for mass‑production of anti‑interference coil assemblies
   

Q: What does permeability mean for ferrite toroidal core? A: Permeability describes the material ability to amplify magnetic flux. Higher initial permeability helps achieve better noise‑suppression performance at low‑frequency range. Different material grades deliver different permeability parameters for diverse working scenarios.

Q: Can this V18050FJ ferrite core work continuously under high‑temperature environment? A: Its working temperature is‑50~150℃, Curie temperature is 570℃. Please keep actual operating temperature within rated scope. Temperature above Curie point will make magnetic properties disappear temporarily.

Q: Why does the inductance value change after winding coils on ferrite toroidal core? A: Inductance relates to turn counts, winding method and core permeability. Mechanical shock, excessive DC bias current will also cause inductance drop. Follow recommended winding specification to get stable inductance output.

Q: What influence will physical scratch or defect bring to ferrite toroid core? A: Minor surface defects within our standard limit will not greatly affect magnetic performance. Severe crack or breakage will deteriorate inductance and reduce finished‑coil reliability. Defective cores should be discarded.

Q: How to choose suitable ferrite toroidal core for my filter project? A: Main points to confirm: operating frequency range, required inductance value, rated current, working temperature and installation space. Please provide your circuit requirements, and we can recommend proper core grade and dimension.