{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LQH31MN680K03L","brand":"Murata Electronics","brandSlug":"murata-electronics","productSlug":"LQH31MN680K03L","canonicalUrl":"https://icboms.com/murata-electronics/LQH31MN680K03L","factsUrl":"https://icboms.com/api/mcp/products/LQH31MN680K03L","rawCanonicalId":null},"summary":{"shortDescription":"Murata Electronics LQH31 series, Drum Core Wirewound Inductor, 68 µH, ±10%, 50 mA, 12.87 Ohm DCR, Unshielded, 1206 (3216 Metric) package, Tape & Reel.","salesMarkdown":"## 68 µH, 50 mA — what the ratings mean for the board The LQH31MN680K03L is a 68 µH drum-core wirewound inductor in the LQH31 series, rated for 50 mA continuous current with a maximum DC resistance of 12.87 Ohm. That DCR tells you the self-heating at rated current: at 50 mA, the copper loss is about 32 mW — negligible in most circuits, but if you push 60 mA through it the temperature rise accelerates because the DCR is already high for a 1206 package. The unshielded construction means the magnetic field extends beyond the component body. Keep it at least one part-width away from other inductors or sensitive analog traces to avoid coupling. The ferrite core material gives a self-resonant frequency of 8.5 MHz, so this part works best below a few MHz — above that the inductance rolls off as the core losses climb. This part is in Last Buy status. Murata has announced end-of-life; the last-time-buy window is open now. If this inductor is on your BOM, you need to secure lifetime-buy quantities or qualify a replacement before the window closes. No official successor is listed — the closest functional alternative is another 68 µH wirewound in the same 1206 footprint, but the DCR and current rating will differ. Operating temperature range is -40°C to +85°C, which covers most indoor and outdoor equipment but not under-hood automotive or high-temp industrial enclosures. If your board sees sustained ambient above 85°C, this inductor is not the right choice — look for a part rated to 125°C or higher.","metaTitle":"Murata LQH31MN680K03L 68 µH Unshielded Inductor, 50 mA","metaDescription":"Murata LQH31MN680K03L drum core wirewound inductor, 68 µH, 50 mA, 12.87 Ohm 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":"40 @ 2.5MHz","Shielding":"Unshielded","Tolerance":"±10%","Inductance":"68 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)":"12.87Ohm Max","Current Rating (Amps)":"50 mA","Height - Seated (Max)":"0.079\\\" (2.00mm)","Operating Temperature":"-40°C ~ 85°C","Supplier Device Package":"1206","Frequency - Self Resonant":"8.5MHz","Current - Saturation (Isat)":"-","Inductance Frequency - Test":"1 MHz"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.3023","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/23793266b202ae546e5047be20f0e556.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the inductance and current rating of LQH31MN680K03L?","answer":"68 µH ±10%, rated for 50 mA continuous with a maximum DC resistance of 12.87 Ohm. The self-resonant frequency is 8.5 MHz, so it is suitable for filtering and DC-DC applications below a few MHz."},{"question":"What package does LQH31MN680K03L come in?","answer":"Supplied on tape and reel."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/murata-electronics/LQH31MN680K03L","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/murata-electronics/LQH31MN680K03L 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}}