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Murata Electronics BLM15AG221SN1D — EMI Filters & Ferrite Beads

BLM15AG221SN1D Murata Ferrite Bead, 220 Ohm @ 100 MHz, 0402

MPNBLM15AG221SN1D
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Murata Electronics EMIFIL® BLM15 series ferrite bead, 220 Ohms @ 100 MHz, 450 mA, 290 mOhm DCR, 0402 (1005 Metric), surface mount.

$0.1000Ref. price · indicative, final on quote
Murata Electronics BLM15AG221SN1D datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

BLM15AG221SN1D specifications
ParameterValue
SeriesEMIFIL®, BLM15
MountingSurface Mount
Current rating450mA
Impedance @ frequency220 Ohms @ 100 MHz
Operating temperature-55°C ~ 125°C
Height0.022\" (0.55mm)
Size (Dimension)0.039\" L x 0.022\" W (1.00mm x 0.55mm)
PackageTape & Reel (TR) Cut Tape (CT)
Case0402 (1005 Metric)
Number of lines1
DC resistance (DCR)290mOhm

Product details

Impedance and current handling

The BLM15AG221SN1D: This single-line ferrite bead presents 220 Ohms of impedance at 100 MHz, the standard suppression frequency for conducted EMI on signal and low-power supply lines. The 450 mA current rating sets the continuous load it can carry without saturating the ferrite material — stay below this for the impedance curve to hold.

Temperature grade and package

The 0402 (1005 metric) footprint is standard for high-density PCB layouts — the 0.55 mm seated height fits under low-profile shielding cans or between closely stacked boards.

Frequently asked questions

What is the impedance of BLM15AG221SN1D at 100 MHz?

220 Ohms at 100 MHz, which is the standard test frequency for ferrite bead impedance in EMI filter applications.

What is the maximum DC resistance of BLM15AG221SN1D?

290 mOhm max, so the IR drop at the 450 mA rated current is about 0.13 V.