Noise suppression ferrite core for flat cables

12 July 2006 Circuit & System Protection

Murata has commercialised an easy-to-install ultra-thin type and light ferrite core, called 'Thin Type Sandwich Core.' The previous thin type ferrite core was 2,0 mm thick for the ultra thin type. This new FSSA RNN Series is 1,0 mm thick (two pieces excluding the gap).

Since two pieces of ultra-thin type ferrite cores sandwich a flat cable, the ferrite cores are in direct contact with the cable. Consequently, in spite of its thinness, the company says that noise removal characteristics are comparable to the company's previous model at frequencies from tens to hundreds of MHz where microwave absorbers fail to remove noise.

Since the ferrite core is covered with adhesive insulation tape, it adheres and so fixes the cable in the correct position at installation.

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