Power Electronics

Chip Ferrite Beads Offer 60% Lower DC Resistance

Murata Electronics North America introduced the BLM15AX_SN series, an advanced ferrite bead that lowers DC resistance by up to 60 percent compared to previous models. As part of Murata's expanding electromagnetic interference filter (EMIFIL™) line, the chip ferrite bead was developed with new ceramic materials and processing technologies that improve performance and reduce size in order to provide power and space savings in portable electronics.

Compared to its predecessors, the BLM15AX_SN chip ferrite bead has DC resistance as low as 0.02 ohms, a reduction of 60 percent, while the corresponding maximum rated current has increased from 1000mA to 1740mA. The series' low DC resistance also helps reduce power consumption for battery-powered applications. Developed in a compact 0402-size package (1.0mm x 0.5mm x 0.5 mm), it is ideal for designers seeking to reduce board space without performance degradation in portable equipment. The ferrite bead's wide impedance ranges from 10 ohms to 1000 ohms, with an operating temperature range of -55ºC to +125ºC.

The BLM15AX_SN series is available for 0.016 cents and lead times are approximately six to eight weeks.

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