TF-20X10X12-5. Core Material: ferromagnetic Ni-Zn. Ferrite Properties: smooth edge prevents the risk of cord damage. Ferrite Series: TF. Ferrite type: ring. Internal diameter: 12.5mm. Lenght: 10mm. Outer Diameter: 20mm. RoHS: yes. Tolerance: ±0.30mm. Original product from manufacturer: Ferrocore. Quantity in stock updated on 12/11/2025, 18:04