75 Ohm at 100 MHz — the noise target
The BLM15BB750SH1D is a single-line ferrite bead from Murata's EMIFIL BLM15 series, offering 75 Ohms impedance at 100 MHz. This is the frequency where common-mode and differential-mode noise from switching regulators and digital clocks typically peaks, so the bead presents its maximum resistance right where the noise energy is highest. The single-line configuration means one bead per signal or power rail.
Active production — still a current BOM line
The reel quantity is the standard for 0402 parts — confirm the reel count with your distributor at quote time.