{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BLM15BD221SZ1D","brand":"Murata Electronics","brandSlug":"murata-electronics","productSlug":"BLM15BD221SZ1D","canonicalUrl":"https://icboms.com/murata-electronics/BLM15BD221SZ1D","factsUrl":"https://icboms.com/api/mcp/products/BLM15BD221SZ1D","rawCanonicalId":null},"summary":{"shortDescription":"Murata Electronics BLM15BD series ferrite bead, 0402 (1005 metric) package, 220 Ohms @ 100 MHz, 300 mA, 400 mOhm DCR, AEC-Q200 qualified, signal line, -55°C to +125°C.","salesMarkdown":"## 220 Ohm suppression at 100 MHz, 0402 footprint The BLM15BD221SZ1D is a Murata BLM series ferrite bead in the 0402 (1005 metric) package, delivering 220 Ohms impedance at 100 MHz on a single signal line. Rated for 300 mA continuous current with a maximum DC resistance of 400 mOhm, this bead is sized for low-power signal paths where the DC voltage drop at rated current stays under 120 mV. ## AEC-Q200 grade: the automotive qualifier An OEM auditor will expect PPAP documentation tied to this qualification level; the 125°C upper limit covers under-hood and engine-bay locations where ambient temps reach 105°C with margin. ## 0402 board-fit and layout note The signal line passes through the bead; the DC resistance of 400 mOhm is the only series impedance at DC, so the voltage drop across the bead at 300 mA is 120 mV.","metaTitle":"Murata BLM15BD221SZ1D Ferrite Bead, 220 Ohm @ 100 MHz, 0402","metaDescription":"Murata BLM15BD221SZ1D signal-line ferrite bead, 220 Ohms @ 100 MHz, 300 mA, 400 mOhm DCR, 0402 package, AEC-Q200 automotive qualified, -55 to +125°C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["EMI Filters & Ferrite Beads"],"specifications":{"Mfr":"Murata Electronics","Series":"BLM","Package":"Tape & Reel (TR)","Ratings":"AEC-Q200","Features":"Automotive","Filter Type":"Signal Line","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 0.020\\\" W (1.00mm x 0.50mm)","Base Product Number":"BLM15BD","Current Rating (Max)":"300mA","Impedance @ Frequency":"220 Ohms @ 100 MHz","Operating Temperature":"-55°C~125°C","DC Resistance (DCR) (Max)":"400mOhm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.0161","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/47421877a8ccd614873519959a109225.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What compliance documentation does Murata provide for this ferrite bead?","answer":"The AEC-Q200 rating is the primary automotive qualification. RoHS and REACH compliance is standard for Murata's BLM series; the specific declaration is available at the time of order. No UL or IEC certification is listed for this signal-line ferrite bead."},{"question":"What is the DC resistance and what does it mean for the circuit?","answer":"Maximum DCR is 400 mOhm. At the 300 mA rated current, the voltage drop across the bead is 120 mV."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/murata-electronics/BLM15BD221SZ1D","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/murata-electronics/BLM15BD221SZ1D 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}}