TN23/14/7-3E25 - 

The Ferrite Toroids from Ferroxcube are ring shape cores. This toroid is the optimal shape for magnetic induction, due to its perfectly closed magnetic circuit and homogenous cross section achieves highest inductance per turn (AL factor). The core shape is specially suitable for common mode chokes, transformers, baluns and other applications where high inductance is required. Coating on the core provides breakdown voltage protection depending on core size and ferrite material.