Four EMI filters on one chip
24 March 2004
Circuit & System Protection
EMI filtering of general and high speed signal lines is now easy says Murata, with its BLA2AA range of four element arrays of ferrite bead inductors that are 2 mm by 1 mm and only 0,5 mm high. Impedance characteristics offer attenuation over a broad frequency range with values for general lines and for high speed signals. Unique inner electrode structures provide very low crosstalk.
Impedance values range from 120 to 1000 Ω with rated currents of 50 and 100 mA. They all operate over a temperature range of -55 to 125°C.
Most miniature digital appliances can benefit from the inclusion of these filters, and they are easy to assemble, having nickel barrier terminations for high resistance to soldering heat.
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