{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BLM15EG121SH1D","brand":"Murata Electronics","brandSlug":"murata-electronics","productSlug":"BLM15EG121SH1D","canonicalUrl":"https://icboms.com/murata-electronics/BLM15EG121SH1D","factsUrl":"https://icboms.com/api/mcp/products/BLM15EG121SH1D","rawCanonicalId":null},"summary":{"shortDescription":"Murata Electronics BLM15EG series ferrite bead, 0402 (1005 metric), 120 Ohms @ 100 MHz, 1.5 A, 95 mOhm DCR, AEC-Q200, Tape & Reel.","salesMarkdown":"## What the 120 Ohm at 100 MHz means on the board The BLM15EG121SH1D is a single-line ferrite bead from Murata's BLM15EG series, in the 0402 (1005 metric) package. It provides 120 Ohms of impedance at 100 MHz, which is the frequency where most conducted EMI from switching converters and digital logic sits — so this bead knocks down that noise before it reaches the power rail or signal line.","metaTitle":"Murata BLM15EG121SH1D Ferrite Bead, 120 Ohm @ 100 MHz, 1.5 A","metaDescription":"Murata BLM15EG121SH1D ferrite bead, 120 Ohm @ 100 MHz, 1.5 A, 95 mOhm DCR, AEC-Q200, 0402. Active production, sourced per RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["EMI Filters & Ferrite Beads"],"specifications":{"Mfr":"Murata Electronics","Series":"BLM15EG","Package":"Tape & Reel (TR) Cut Tape (CT)","Ratings":"AEC-Q200","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 0.022\\\" W (1.00mm x 0.55mm)","Base Product Number":"BLM15EG","Current Rating (Max)":"1.5A","Impedance @ Frequency":"120 Ohms @ 100 MHz","Operating Temperature":"-55°C ~ 125°C","DC Resistance (DCR) (Max)":"95mOhm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.2100","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/BLM15EG121SH1D/alternatives.json"},"ai":{"faq":[{"question":"What is the impedance of BLM15EG121SH1D at 100 MHz?","answer":"120 Ohms at 100 MHz, which is the standard reference frequency for ferrite bead EMI suppression. This impedance is effective for filtering conducted noise from switching regulators and high-speed digital lines in the 10 MHz to 300 MHz band."},{"question":"Is BLM15EG121SH1D AEC-Q200 qualified?","answer":"Yes, it carries an AEC-Q200 rating, meaning it has passed automotive-grade passive component reliability testing including thermal shock, moisture resistance, and vibration."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/murata-electronics/BLM15EG121SH1D","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/murata-electronics/BLM15EG121SH1D 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}}