{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LQH31CN4R7M03L","brand":"Murata Electronics","brandSlug":"murata-electronics","productSlug":"LQH31CN4R7M03L","canonicalUrl":"https://icboms.com/murata-electronics/LQH31CN4R7M03L","factsUrl":"https://icboms.com/api/mcp/products/LQH31CN4R7M03L","rawCanonicalId":null},"summary":{"shortDescription":"Murata Electronics LQH31 series, Drum Core Wirewound Inductor, LQH31CN4R7M03L, 4.7 µH, ±20%, 340 mA, 845 mOhm DCR, 1206 (3216 Metric) package, unshielded.","salesMarkdown":"The LQH31CN4R7M03L: Murata has flagged this part as Last Buy. That means the production window is closing — if this inductor is on your BOM, the time to secure lifetime buy quantities or identify a drop-in replacement is now. ## 4.7 µH, 340 mA — the fit check This is a 4.7 µH unshielded wirewound drum core inductor in a 1206 package. The 340 mA current rating and 845 mOhm max DCR set the DC loss budget — at full rated current, the I²R loss is about 98 mW, which the 1206 body dissipates without issue in still air up to 85°C ambient. The self-resonant frequency is 31 MHz, so it behaves as an inductor well below that — useful for DC-DC converter output filtering or power rail smoothing where the switching frequency stays under ~3 MHz to keep a healthy margin. ## Board fit — 1206 footprint, unshielded No shielding can means the magnetic field radiates — keep sensitive traces or other inductors a few body widths away to avoid coupling. Ferrite core material, ±20% tolerance. The 1 MHz test frequency for the inductance value is typical for power-grade ferrite inductors.","metaTitle":"Murata LQH31CN4R7M03L Drum Core Inductor, 4.7 µH, 340 mA","metaDescription":"Murata LQH31CN4R7M03L 4.7 µH unshielded wirewound inductor, 340 mA, 845 mOhm DCR, 1206 package. Last Buy status — 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":"Drum Core, Wirewound","Series":"LQH31","Package":"Tape & Reel (TR) Cut Tape (CT)","Ratings":"-","Q @ Freq":"-","Shielding":"Unshielded","Tolerance":"±20%","Inductance":"4.7 µH","Mounting Type":"Surface Mount","Package / Case":"1206 (3216 Metric)","Product Status":"Last Time Buy","Material - Core":"Ferrite","lifecycle_stage":"unknown","Size / Dimension":"0.126\\\" L x 0.063\\\" W (3.20mm x 1.60mm)","Base Product Number":"LQH31CN","DC Resistance (DCR)":"845mOhm Max","Current Rating (Amps)":"340 mA","Height - Seated (Max)":"0.079\\\" (2.00mm)","Operating Temperature":"-40°C ~ 85°C","Supplier Device Package":"1206","Frequency - Self Resonant":"31MHz","Current - Saturation (Isat)":"-","Inductance Frequency - Test":"1 MHz"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.6500","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/464d3ab2ad0094ea68db0784070895fc.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/murata-electronics/LQH31CN4R7M03L","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/murata-electronics/LQH31CN4R7M03L 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}}