Signal-line filtering in a tight footprint
The BLM15AG121SZ1D is a single-line ferrite bead from Murata's BLM15_SZ series, packaged in a 0402 (1005 Metric) footprint. It delivers 120 Ohms impedance at 100 MHz, sized for suppressing conducted noise on signal lines in automotive electronics. Rated for 550 mA continuous current with a maximum DC resistance of 190 mOhm, the part keeps insertion loss low in the passband while attenuating high-frequency interference above the resonant peak.
AEC-Q200 qualified, the BLM15AG121SZ1D meets the stress and reliability requirements for under-hood and cabin electronics in passenger vehicles.