{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LQH31MN2R2J03L","brand":"Murata Electronics","brandSlug":"murata-electronics","productSlug":"LQH31MN2R2J03L","canonicalUrl":"https://icboms.com/murata-electronics/LQH31MN2R2J03L","factsUrl":"https://icboms.com/api/mcp/products/LQH31MN2R2J03L","rawCanonicalId":null},"summary":{"shortDescription":"Murata Electronics LQH31 series Drum Core, Wirewound inductor, LQH31MN2R2J03L, 2.2 µH, ±5%, 140 mA, 700 mOhm DCR, 1206 (3216 Metric) package.","salesMarkdown":"## Last-buy sourcing angle Murata has flagged the LQH31MN2R2J03L as Last Buy — the manufacturer has stopped accepting new orders for this part, and remaining production lots are being wound down. Any inventory we hold or can source is from the final production window or surplus channel, not an open-ended supply line. ## What the ratings mean for a BOM line The 140 mA current rating is the DC bias current at which the inductance typically drops by 10% — do not design this part into a rail that pulls more than 140 mA steady-state, or the effective inductance falls below the 2.2 µH tolerance band. 700 mOhm DCR at 140 mA produces about 14 mW of I²R loss — negligible in a power rail but enough to shift the self-resonant frequency if the inductor is used in a tuned filter at 50 MHz. The unshielded construction means stray flux couples into adjacent traces — keep a keep-out zone around the body in a dense layout, especially near sensitive analog or RF paths.","metaTitle":"Murata LQH31MN2R2J03L Drum Core Inductor, 2.2 µH, 140 mA","metaDescription":"Murata LQH31MN2R2J03L 2.2 µH unshielded wirewound inductor, 140 mA rated current, 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":"35 @ 10MHz","Shielding":"Unshielded","Tolerance":"±5%","Inductance":"2.2 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":"LQH31MN","DC Resistance (DCR)":"700mOhm","Current Rating (Amps)":"140 mA","Height - Seated (Max)":"0.079\\\" (2.00mm)","Operating Temperature":"-40°C ~ 85°C","Supplier Device Package":"1206 (3216 Metric)","Frequency - Self Resonant":"50MHz","Current - Saturation (Isat)":"-","Inductance Frequency - Test":"1 MHz"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.6700","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/23793266b202ae546e5047be20f0e556.pdf","sourceUrl":null},"ai":{"faq":[{"question":"How can I source LQH31MN2R2J03L for a BOM?","answer":"We source this part through independent distribution and surplus channels — availability and pricing are confirmed at the time of RFQ against your specific quantity and date-code requirements. The Last Buy status means each lot is evaluated individually for authenticity and condition."},{"question":"What is the self-resonant frequency of this inductor?","answer":"The self-resonant frequency is 50 MHz. Above this frequency the inductor behaves capacitively — it is not suitable for filtering or matching above 50 MHz."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/murata-electronics/LQH31MN2R2J03L","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/murata-electronics/LQH31MN2R2J03L 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}}