{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BLM15EG221SZ1D","brand":"Murata Electronics","brandSlug":"murata-electronics","productSlug":"BLM15EG221SZ1D","canonicalUrl":"https://icboms.com/murata-electronics/BLM15EG221SZ1D","factsUrl":"https://icboms.com/api/mcp/products/BLM15EG221SZ1D","rawCanonicalId":null},"summary":{"shortDescription":"Murata Electronics BLM series ferrite bead, 0402 (1005 metric), 220 Ohms @ 100 MHz, 700 mA, 280 mOhm DCR, AEC-Q200, active.","salesMarkdown":"## Board-level EMI suppression with automotive traceability The BLM15EG221SZ1D is a single-line ferrite bead in the Murata BLM series, housed in an 0402 (1005 metric) package. It delivers 220 Ohms impedance at 100 MHz — the frequency band where conducted EMI from switching regulators and digital clocks couples onto power or signal traces. Rated for 700 mA continuous current with a maximum DC resistance of 280 mOhm. That DCR puts the self-heating at roughly 0.14 W at full rated current — well within the 0402 body's dissipation capacity in a standard FR4 layout, but the temperature rise should be verified if the bead is placed in a high-density region with limited copper pour. AEC-Q200 qualified — the part carries the full automotive passive-component stress test suite (thermal shock, vibration, humidity, solder heat resistance) per the AEC-Q200 Rev D standard. This is not a 'capable' industrial part; it has the PPAP-ready documentation an OEM auditor expects for under-hood or cabin electronics. The 125°C upper limit matches the solder-joint reliability ceiling for 0402 terminations on standard PCB finishes. ## Active production — no end-of-life watch needed Sourced to order against BOM quantities. No stock-holding claim; every RFQ is quoted fresh.","metaTitle":"Murata BLM15EG221SZ1D 220Ω @ 100MHz Ferrite Bead, AEC-Q200","metaDescription":"Murata BLM15EG221SZ1D 0402 ferrite bead, 220Ω @ 100MHz, 700mA, 280mOhm DCR, AEC-Q200 automotive grade. Active production, sourced to order. Request RFQ.","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) Cut Tape (CT)","Ratings":"AEC-Q200","Features":"Automotive","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":"BLM15EG","Current Rating (Max)":"700mA","Impedance @ Frequency":"220 Ohms @ 100 MHz","Operating Temperature":"-55°C ~ 125°C","DC Resistance (DCR) (Max)":"280mOhm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.1800","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"Is BLM15EG221SZ1D AEC-Q200 qualified?","answer":"Yes, the BLM15EG221SZ1D carries AEC-Q200 qualification — the automotive passive-component stress test suite covering thermal shock, vibration, humidity, and solder heat resistance. This is the certification an OEM auditor expects for automotive-grade EMI suppression components."},{"question":"What package size is BLM15EG221SZ1D?","answer":"The BLM15EG221SZ1D is an 0402 (1005 metric) surface-mount ferrite bead."},{"question":"What is the current rating and DC resistance of BLM15EG221SZ1D?","answer":"Rated for 700 mA maximum continuous current with a maximum DC resistance of 280 mOhm. The DCR sets the self-heating limit — at full rated current the power dissipation is roughly 0.14 W, which the 0402 body can handle on a standard FR4 board with adequate copper thermal relief."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/murata-electronics/BLM15EG221SZ1D","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/murata-electronics/BLM15EG221SZ1D 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}}