RFI shielding and magnetic shielding

    Standard circulators and isolators have an RFI leakage measured at proximity of 30 to 40dB. Special packaging and sealing methods can improve the RFI shielding. Leakage values in excess of 60dB can be provided but require additional shielding to be incorporated during the initial design.

    
     Catalog circulator and isolators all have sufficient magnetic shielding for general handling and mounting. These units can usually be mounted to within ½ inch of one another or from other magnetic materials without degrading electrical performance. For more stringent applications (mounting in direct contact with a magnetic plate) additional shielding may be required and necessitate a larger package size.