Signal-line filtering in a 0402 footprint
The BLM15BA100SN1D: A single-line ferrite bead from Murata's EMIFIL BLM15 family, presenting 10 ohms impedance at 100 MHz — suited for low-frequency noise suppression on digital or analog signal lines where the target noise band sits below 200 MHz. Rated for 300 mA continuous current with a maximum DC resistance of 200 milliohms; the voltage drop across the bead at full load is 60 mV, and self-heating stays low enough that the 0402 body does not exceed its 125°C operating limit in still air.