Murata has introduced ferrite beads for EMI filter applications in DC power lines, that are available in the 01005 size (0.4x0.2x0.2mm).

They are capable of wide frequency range attenuation, typically 30MHz to several hundred MHz. Impedance ranges from 10 to 120ohm, with rated currents between 200 and 500mA. DC resistance is below 0.8ohm for the whole series.

Other additions to the EMIFIL family include the BLM03A, BLM03B and BLM03P series of chip ferrite beads in 0201 packaging. BLM03A ferrite beads feature a high impedance line up of between 10 and 1000ohm.

Rated currents are 100 to 500mA; DC resistance is 2.5ohm maximum.

The BLM03B series is available with impedances between 10 and 240ohm and features low DC resistance of between 0.4 and 1.5ohm. The BLM03P series features high rated currents up to 900mA.

See http://www.murata.eu