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Best Alternatives to BLM15AG121SN1D

Package: 0402 (1005 metric)Murata Manufacturing Co., Ltd.Ferrite Beads and ChipsImpedance @ 100 MHz: 120 OhmRated Current: 550 mADC Resistance (Initial): 0.19 OhmDC Resistance (Max): 0.29 OhmPackage / Case: 0402 (1005 metric)

BLM15AG121SN1D is a 120 Ohm 0402 Murata ferrite bead. Supplied alternatives need FAE review before use.

AI replacement insight

Electrical riskhigh

current/DCR are weaker

Package riskmedium

0402 matches, pinout missing

Firmware risklow

passive component

Sourcing riskmedium

lifecycle mixed

Can it be replaced directly?

No verified pin-compatible replacement is proven by the supplied evidence.

Best replacement path

Start with 120 Ohm 0402 beads, then verify current, DCR, temperature, and pinout.

Main risk

Kept candidates have lower current ratings and higher DCR.

Recommended alternatives

Alternatives are being enriched. Analyze this part in PartGenie for the latest matches.

Alternative comparison matrix

Feature / factorBLM15AG121SN1DBLM15BB121PN1D2504021217Y0Alt 3Compatibility / risk
Package0402040204020402 — same case; 2504021217Y0: same case
Pinout2 terminalspin_count 0pin_count 0pin_count 0 — not verified; 2504021217Y0: not verified
Current550 mA300 mA200 mA300 mA / 200 mA — derate load; 2504021217Y0: large derate
Resistance0.19 Ohm0.55 Ohm0.5 Ohm0.55 Ohm / 0.5 Ohm — more DC drop; 2504021217Y0: more DC drop
Application120 Ohm bead120 Ohm bead120 Ohm bead120 Ohm bead — same nominal Z; 2504021217Y0: same nominal Z

Application & sourcing insights

Questions & answers

From the supplied list, BLM15BB121PN1D is the closest, but it needs review for lower current and higher DCR.