RFI Industries is equipped with a wide range of products ranging from small household appliances to military vehicles. Laird’s range of EMI products from RFI Industries is available in Australia and New Zealand. Their Laird's Cylindrical EMI Suppression Ferrite Cores reduce common and differential mode EMI. These cores are used to suppress common mode EMI on the internal and external cable assemblies of electronic equipment.
By decreasing the levels of EMI radiated by internal cables, ferrite cores can reduce the amount of overall shielding required to confine EMI within a product's enclosure. They may also be successfully used on power cables that carry digital or analog signaling. To achieve maximum EMI filtering performance in a given application, select a ferrite with an inner diameter that matches the outer diameter of the wire or wire bundle to be filtered.
The in circuit impedance may be substantially increased by passing 2 turns of the wire conductor through the ferrite core. A typical common mode application might have two conductors passed through a ferrite core. With equal and opposite currents flowing through the core, zero net bias is established through the component and maximum impedance is thus realised from the ferrite.
Wide range of sizes are available with inner diameters ranging from 0.90 mm to 35.65 mm. Precision formed smooth surfaces prevent damage to wire insulation. The cores are available in Laird broad band (28), high frequency (HF) and Low frequency (LF) materials. Custom designs are also available.