{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BLM15EX471SN1D","brand":"Murata Electronics","brandSlug":"murata-electronics","productSlug":"BLM15EX471SN1D","canonicalUrl":"https://icboms.com/murata-electronics/BLM15EX471SN1D","factsUrl":"https://icboms.com/api/mcp/products/BLM15EX471SN1D","rawCanonicalId":null},"summary":{"shortDescription":"Murata Electronics EMIFIL®, BLM15 series ferrite bead, 0402 (1005 Metric) package, 1-line, 470 Ohms @ 100 MHz, 950 mA, 280 mOhm DCR, -55°C ~ 125°C.","salesMarkdown":"## 470 Ohm bead for a 950 mA rail The Murata BLM15EX471SN1D is a single-line ferrite bead from the EMIFIL® BLM15 series, offering 470 Ohms impedance at 100 MHz while carrying up to 950 mA continuous current. In a 3.3 V digital rail, that 280 mOhm maximum DCR drops about 266 mV at full rated current — the voltage budget at the load needs that headroom above the regulator setpoint. ## Where the temperature range matters The ferrite material's impedance curve shifts with temperature — at 125°C the peak impedance frequency drifts lower, but the 470 Ohm spec at 100 MHz is the reference point for room-temperature design. For a power supply output filtering a switching regulator running at 1-2 MHz, the bead's impedance at that frequency (typically lower than the 100 MHz figure) is the relevant number for attenuation. ## Active production, sourced to order Listed as Active by Murata.","metaTitle":"BLM15EX471SN1D Murata Ferrite Bead, 470 Ohm @ 100 MHz","metaDescription":"Murata BLM15EX471SN1D EMIFIL ferrite bead, 470 Ohm impedance at 100 MHz, 950 mA current rating, 0402 package. Active production, sourced 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)","Ratings":"-","Features":"-","Filter Type":"Power, 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":"BLM15EX","Current Rating (Max)":"950mA","Impedance @ Frequency":"470 Ohms @ 100 MHz","Operating Temperature":"-55°C ~ 125°C","DC Resistance (DCR) (Max)":"280mOhm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.1700","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"What is the DC resistance and current rating for BLM15EX471SN1D?","answer":"Maximum DCR is 280 mOhm, and the continuous current rating is 950 mA. The voltage drop across the bead at full current is about 266 mV, which must be accounted for in the load's supply voltage budget."},{"question":"What package is BLM15EX471SN1D available in?","answer":"0402 (1005 Metric) surface-mount package, dimensions 1.00 mm x 0.50 mm x 0.55 mm max height."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/murata-electronics/BLM15EX471SN1D","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/murata-electronics/BLM15EX471SN1D 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}}