{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DFEH10040D-2R2M=P3","brand":"Murata Electronics","brandSlug":"murata-electronics","productSlug":"DFEH10040D-2R2MP3","canonicalUrl":"https://icboms.com/murata-electronics/DFEH10040D-2R2MP3","factsUrl":"https://icboms.com/api/mcp/products/DFEH10040D-2R2M%3DP3","rawCanonicalId":null},"summary":{"shortDescription":"Murata Electronics DFEH10040D series, shielded power inductor, DFEH10040D-2R2M=P3, 2.2 µH, ±20%, 12 A, 7.5 mOhm DCR, AEC-Q200, surface mount, nonstandard package.","salesMarkdown":"## What the AEC-Q200 rating means for the BOM The DFEH10040D-2R2M=P3: For a tier-one ECU program, this inductor is PPAP-ready without a separate qualification run. The -40°C to +155°C operating range covers the under-hood ambient profile with margin for self-heating. At 12 A continuous, the 7.5 mOhm max DCR produces about 1.1 W of I²R loss — the 155°C ceiling absorbs that rise without derating the current rating. ## Current rating vs saturation — which one governs the design The continuous current rating is 12 A, but the saturation current (Isat) is 14 A. In a buck converter output stage, the inductor sees a DC bias plus ripple current; the inductance drop at the peak of the ripple must stay within the system's ripple-current budget. The 14 A Isat means the inductance holds its value up to roughly 14 A, so a 12 A DC load with 2 A ripple stays below the knee. The iron powder core material gives a soft saturation characteristic — inductance rolls off gradually rather than collapsing abruptly. This is useful in automotive transient conditions where the load current spikes above the DC rating for tens of milliseconds. ## Last-buy status — what it means for procurement Murata has marked the DFEH10040D-2R2M=P3 as Last Buy. This is the final ordering window before the part becomes obsolete.","metaTitle":"Murata DFEH10040D-2R2M=P3 Shielded Power Inductor, 2.2 µH","metaDescription":"Murata DFEH10040D-2R2M=P3 shielded power inductor, 2.2 µH, 12 A, 7.5 mOhm DCR, AEC-Q200. Last buy — sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Last Buy","categoryPath":["Inductors & Chokes"],"specifications":{"Mfr":"Murata Electronics","Type":"-","Series":"DFEH10040D","Package":"Tape & Reel (TR); Cut Tape (CT)","Ratings":"AEC-Q200","Features":"-","Q @ Freq":"-","Shielding":"Shielded","Tolerance":"±20%","Inductance":"2.2 µH","Mounting Type":"Surface Mount","Package / Case":"Nonstandard","Product Status":"Last Time Buy","Material - Core":"Iron Powder","lifecycle_stage":"unknown","Size / Dimension":"0.429\\\" L x 0.394\\\" W (10.90mm x 10.00mm)","Base Product Number":"DFEH10040D","DC Resistance (DCR)":"7.5mOhm Max","Current Rating (Amps)":"12 A","Height - Seated (Max)":"0.157\\\" (4.00mm)","Operating Temperature":"-40°C~155°C","Supplier Device Package":"-","Frequency - Self Resonant":"-","Current - Saturation (Isat)":"14A","Inductance Frequency - Test":"100 MHz"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.0400","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/7af062c940733a821f973d8209399ac8.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest alternative to DFEH10040D-2R2M=P3 in the same family?","answer":"The DFEH10040D series includes other inductance values, but no direct pin-compatible 2.2 µH replacement is listed as an official cross. A functionally equivalent inductor would need the same 10.9 x 10.0 mm footprint, 2.2 µH ±20%, 12 A rating, 7.5 mOhm DCR, and AEC-Q200 qualification."},{"question":"What compliance documentation does Murata provide for DFEH10040D-2R2M=P3?","answer":"The part is AEC-Q200 qualified. Request the full compliance declaration at RFQ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/murata-electronics/DFEH10040D-2R2MP3","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/murata-electronics/DFEH10040D-2R2MP3 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}}