The Ferrocore DE1207-680 is an axial leaded, fixed, tubular ferrite core with 68 ohm impedance. It is made with a high permeability ferrite material, and is suitable for use in low-power radio frequency (RF) applications. The DE1207-680 ferrite core can be used for RF blocking, filters, antennas, and other circuits. It is also suitable for use in high frequency power inductors. The core has an outside diameter of 12mm, an inside diameter of 7mm, and a height of 3mm. It features an operating temperature range of -55°C to +125°C, and a maximum operating frequency of 1 MHz.