{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LQH31CN100K03L","brand":"Murata Electronics","brandSlug":"murata-electronics","productSlug":"LQH31CN100K03L","canonicalUrl":"https://icboms.com/murata-electronics/LQH31CN100K03L","factsUrl":"https://icboms.com/api/mcp/products/LQH31CN100K03L","rawCanonicalId":null},"summary":{"shortDescription":"Murata Electronics LQH31 series, Drum Core Wirewound Inductor, 10 µH, ±10%, 230 mA, 1.69 Ohm DCR, 1206 (3216 Metric), Unshielded, Last Buy.","salesMarkdown":"## 10 µH wirewound for power rail filtering The Murata LQH31CN100K03L is a 10 µH unshielded wirewound inductor in the LQH31 series, built on a ferrite core. It carries a 230 mA current rating with a 1.69 Ohm max DCR — the DCR figure sets the self-heating at full load, so the temperature rise under continuous 230 mA is a factor in the thermal budget near other hot components. The 20 MHz self-resonant frequency means this inductor behaves as an inductor up to roughly 20 MHz; above that, parasitic capacitance dominates and the impedance rolls off. For a buck converter switching at 500 kHz to 2 MHz, the SRF gives plenty of headroom. ## Last Buy — plan the BOM line now Murata has marked this part Last Buy. That means the manufacturer has stopped taking new orders for ongoing production — the remaining inventory in the channel is the final supply. If this inductor is on your BOM, the window to secure stock is closing; a last-time-buy against your forecasted quantity is the standard move. No official successor order code is recorded. Once the Last Buy inventory is exhausted, a re-qualification with a different Murata inductor or a second-source part will be required. The 1206 footprint and 10 µH / 230 mA target narrow the search to other LQH31-family parts or a compatible shielded alternative if crosstalk is a concern. ## 1206 footprint and unshielded trade-offs The unshielded construction means the magnetic field radiates into the surrounding board area; keep sensitive traces or other magnetics at least one part-width away to avoid coupling. The ferrite core material gives a stable inductance over this temperature range, though DCR rises with temperature per the copper wire's positive temperature coefficient.","metaTitle":"Murata LQH31CN100K03L 10 µH Inductor, 230 mA, 1206, Last Buy","metaDescription":"Murata LQH31CN100K03L 10 µH unshielded wirewound inductor, 230 mA, 1206 package, Last Buy lifecycle. Sourced to order — confirm availability at 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":"±10%","Inductance":"10 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)":"1.69Ohm Max","Current Rating (Amps)":"230 mA","Height - Seated (Max)":"0.079\\\" (2.00mm)","Operating Temperature":"-40°C~85°C","Supplier Device Package":"1206","Frequency - Self Resonant":"20MHz","Current - Saturation (Isat)":"-","Inductance Frequency - Test":"1 MHz"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.7100","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/464d3ab2ad0094ea68db0784070895fc.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest alternative to LQH31CN100K03L in the same family?","answer":"No official cross-reference or successor is recorded. Within the LQH31 series, other 10 µH parts with the same 1206 footprint may differ in current rating, DCR, or shielding. A shielded variant would reduce radiated field coupling at the cost of slightly higher DCR or lower saturation current — compare the parametric table for the best fit to your load."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/murata-electronics/LQH31CN100K03L","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/murata-electronics/LQH31CN100K03L 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}}