220 Ohm suppression at 100 MHz, 1.3 A continuous
The Murata BLM15EX221SN1D is a single-line ferrite bead from the EMIFIL BLM15 series, delivering 220 Ohms of impedance at 100 MHz — the frequency where conducted EMI from switching regulators and digital clocks typically peaks. Rated for 1.3 A continuous current, it handles moderate power rails without saturating the ferrite material.
0402 footprint, active production
Housed in the standard 0402 (1005 Metric) package — 1.00 mm x 0.55 mm, 0.55 mm seated height — this bead fits into any high-density PCB layout where board space is at a premium. The surface-mount termination is compatible with reflow soldering profiles for lead-free assemblies.