{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DFEH7030D-8R2M=P3","brand":"Murata Electronics","brandSlug":"murata-electronics","productSlug":"DFEH7030D-8R2MP3","canonicalUrl":"https://icboms.com/murata-electronics/DFEH7030D-8R2MP3","factsUrl":"https://icboms.com/api/mcp/products/DFEH7030D-8R2M%3DP3","rawCanonicalId":null},"summary":{"shortDescription":"Murata Electronics DFEH7030D series, shielded power inductor, DFEH7030D-8R2M=P3, 8.2 µH, ±20%, 3.1 A, 78 mOhm DCR, AEC-Q200, surface mount, NRND.","salesMarkdown":"The DFEH7030D-8R2M=P3: This is the official lifecycle status — the part remains available for existing production but is not intended for new BOM entries. The last-time-buy window is open; once it closes, the only supply channel will be independent surplus. ## Current and saturation — the real load limits Rated 3.1 A continuous current with a saturation current (Isat) of 4.2 A. The saturation rating is the point where inductance typically drops 30% — for a buck converter drawing 3 A steady-state, a 4.2 A Isat gives roughly 40% headroom for load transients before the inductor saturates and the current ramp becomes uncontrolled. DC resistance is 78 mOhm max, which at 3.1 A produces I²R conduction losses of about 0.75 W. In a compact 7.00 mm x 6.60 mm surface-mount package with a 3.00 mm seated height, that heat must be conducted through the PCB copper — the board layout's thermal via pattern under the inductor directly sets the steady-state temperature rise. ## Automotive-grade screening and temperature range AEC-Q200 qualified — this inductor passed the automotive passive-component stress tests: thermal shock, moisture resistance, mechanical shock, vibration, and solderability. The -40°C to +155°C operating range covers under-hood and engine-bay environments where ambient temperatures exceed 125°C. The iron powder core material gives stable inductance under DC bias compared to ferrite, which saturates more abruptly. For a 12 V automotive rail feeding a 3.3 V point-of-load converter, the inductor sees a DC bias near the load current — iron powder holds its inductance better than ferrite at that bias point. ## Shielding and EMI — why it matters for power rails Shielded construction — the magnetic flux is contained within the core and shield, reducing radiated emissions that couple into adjacent traces or the input-sense line of a nearby regulator. In a dense automotive ECU layout where a buck inductor sits 2 mm from a CAN transceiver, the shielding is what keeps the EMI below CISPR 25 Class 5 limits.","metaTitle":"Murata DFEH7030D-8R2M=P3 Power Inductor, 8.2 µH, 3.1 A","metaDescription":"Murata DFEH7030D-8R2M=P3 shielded power inductor, 8.2 µH, 3.1 A, 78 mOhm DCR, AEC-Q200, NRND. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"NRND","categoryPath":["Inductors & Chokes"],"specifications":{"Mfr":"Murata Electronics","Type":"-","Series":"DFEH7030D","Package":"Tape & Reel (TR); Cut Tape (CT)","Ratings":"AEC-Q200","Features":"-","Q @ Freq":"-","Shielding":"Shielded","Tolerance":"±20%","Inductance":"8.2 µH","Mounting Type":"Surface Mount","Package / Case":"Nonstandard","Product Status":"Not For New Designs","Material - Core":"Iron Powder","lifecycle_stage":"unknown","Size / Dimension":"0.276\\\" L x 0.260\\\" W (7.00mm x 6.60mm)","Base Product Number":"DFEH7030D","DC Resistance (DCR)":"78mOhm Max","Current Rating (Amps)":"3.1 A","Height - Seated (Max)":"0.118\\\" (3.00mm)","Operating Temperature":"-40°C~155°C","Supplier Device Package":"-","Frequency - Self Resonant":"-","Current - Saturation (Isat)":"4.2A","Inductance Frequency - Test":"100 kHz"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.6300","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/ea85b9afcd7a89e5e6856c8930978866.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What are the key current ratings for DFEH7030D-8R2M=P3?","answer":"The continuous current rating is 3.1 A, and the saturation current (Isat) is 4.2 A. The DC resistance is 78 mOhm max. These three values together define the inductor's load capability and conduction loss in a power converter."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/murata-electronics/DFEH7030D-8R2MP3","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/murata-electronics/DFEH7030D-8R2MP3 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-20T14:34:45.345Z","lastPublished":"2026-07-20T14:34:45.345Z","indexable":true}}