Inductors, ferrite bead, Murata, BLM15P

Murata claims to shrink DC power filtering by 60%

News Release from: Murata Electronics (UK) Ltd.
24/01/2008

Murata has released its BLM15P series of chip ferrite bead inductors in 0402 packages. These tiny parts measure 1.0 by 0.5 by 0.5mm, achieving a footprint that is over 60% smaller than the 0603 types offered previously, without degradation in performance. The devices are suitable for EMI reduction on DC power lines and low speed signal lines where the smaller packaging reduces board space.

The inductors feature extremely low DC resistance, between 0.035 and 0.090 Ohms, and high rated current of up to 2.2A. The typical impedance at 1MHz is between 10 Ohms and 120 Ohms, depending on the specific part. The equivalent circuit is a series inductor and resistor, the resistance element becoming dominant at high frequencies.

The BLM15P series has an operating temperature range of -55 to +125 degrees C. Current de-rating must be used above 85 degrees C. The parts are offered on 180 or 330mm paper tape, or in bulk packages with a minimum quantity of 1000.