Enhance your EMl/RFl filtering performance with this 2-piece set of FT-240-31 toroidal ferrite cores, designed to reduce high frequency noise and electromagnetic interference in circuits. These ferrite cores are made of high-quality 31-gauge material that reduces noise and improves signal clarity in antenna systems. Reduces RF high-frequency frequencies and provides excellent anti-interference effects. Improves signal clarity and circuit stability This FT-240-31 toroidal ferrite core is made of 31 materials and is designed for high frequency noise suppression and EMI management. With a wide range of operating frequencies, it provides reliable EMI/RFI suppression in circuits such as RF, switching power supplies, communications and audio equipment. The core adopts a classic toroidal structure, which evenly distributes the magnetic field, effectively absorbs noise energy, suppresses common-mode and differential-mode interference signals, optimizes signal integrity, and enhances the EMC performance of the equipment