{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BLM15BB121SH1D","brand":"Murata Electronics","brandSlug":"murata-electronics","productSlug":"BLM15BB121SH1D","canonicalUrl":"https://icboms.com/murata-electronics/BLM15BB121SH1D","factsUrl":"https://icboms.com/api/mcp/products/BLM15BB121SH1D","rawCanonicalId":null},"summary":{"shortDescription":"Murata Electronics EMIFIL®, BLM15 series ferrite bead, BLM15BB121SH1D, 0402 (1005 Metric), 120 Ohms @ 100 MHz, single-line differential-mode filter, surface mount.","salesMarkdown":"## 120 Ohms at 100 MHz — what that means on the line The BLM15BB121SH1D is a single-line ferrite bead from Murata's EMIFIL® BLM15 series, in the 0402 (1005 Metric) footprint. Its 120 Ohms impedance at 100 MHz is the peak suppression point for common conducted noise in the 80–200 MHz band — think clock harmonics, switching-regulator edges, or digital bus radiation that couples onto a power or signal trace. Because it is a differential-mode (single-line) filter, it inserts series impedance into one conductor only — no common-mode choke action. ## Active production — no lifecycle watch needed The base product number BLM15BB covers the whole 0402 impedance family; the suffix 121SH1D specifies the 120 Ohm variant and the packaging (Tape & Reel, Cut Tape).","metaTitle":"Murata BLM15BB121SH1D Ferrite Bead, 120 Ohms @ 100 MHz, 0402","metaDescription":"Active Murata BLM15BB121SH1D ferrite bead, 120 Ohms impedance at 100 MHz, 0402 package. Differential-mode single-line filter. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["EMI Filters & Ferrite Beads"],"specifications":{"Mfr":"Murata Electronics","Series":"EMIFIL®, BLM15","Package":"Tape & Reel (TR) Cut Tape (CT)","Filter Type":"Differential Mode - Single","Height (Max)":"0.022\\\" (0.55mm)","Mounting Type":"Surface Mount","Package / Case":"0402 (1005 Metric)","Product Status":"Active","Number of Lines":"1","lifecycle_stage":"unknown","Size / Dimension":"0.039\\\" L x 0.022\\\" W (1.00mm x 0.55mm)","Base Product Number":"BLM15BB","Impedance @ Frequency":"120 Ohms @ 100 MHz"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.1000","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/8d17a4d299fe1a8eedf4740d7f526cc6.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/BLM15BB121SH1D/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/murata-electronics/BLM15BB121SH1D","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/murata-electronics/BLM15BB121SH1D when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}