{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LQH31MN101J03L","brand":"Murata Electronics","brandSlug":"murata-electronics","productSlug":"LQH31MN101J03L","canonicalUrl":"https://icboms.com/murata-electronics/LQH31MN101J03L","factsUrl":"https://icboms.com/api/mcp/products/LQH31MN101J03L","rawCanonicalId":null},"summary":{"shortDescription":"Murata Electronics LQH31 series, Drum Core Wirewound Inductor, 100 µH, ±5%, 45 mA, 12 Ohm DCR, Unshielded, 1206 (3216 Metric), Tape & Reel.","salesMarkdown":"## What the 45 mA rating means for your circuit The LQH31MN101J03L is a 100 µH drum-core wirewound inductor in a 1206 SMD package, rated for 45 mA continuous current. At that current the DC resistance of 12 Ω drops about 540 mV and dissipates roughly 24 mW — well within the part's self-heating budget for a typical signal-filter or low-power DC-DC output choke. Self-resonant frequency is 7 MHz, so the inductor behaves inductively up to that point. Above 7 MHz the parasitic capacitance dominates and the impedance rolls off — useful to know if you are filtering a switching regulator switching at a few megahertz. For a narrow-band matching or resonant tank circuit at 2.5 MHz, this Q gives a reasonable selectivity without excessive loss. ## Last Buy — what it means for procurement Murata has classified the LQH31MN101J03L as Last Buy. This means the manufacturer has announced end-of-life and the final production window is closing. No official successor part number is listed on the lifecycle record. For a BOM line that depends on this exact inductance, tolerance, and package, the Last Buy status means you should secure your lifetime-buy quantity now. Once Murata's last order date passes, the only channel will be independent surplus inventory. The part is unshielded — the ferrite drum core radiates a fringe field. In a dense layout, keep sensitive traces or other magnetics at least one part-width away to avoid coupling. ## Package and rework considerations 1206 (3216 metric) is a large, two-terminal SMD — easy to hand-solder or hot-air rework. The ferrite core is not moisture-sensitive (no MSL rating needed for a wound component), so no bake-out is required before reflow. Just pre-tin one pad, place the part, and reflow with tweezers. The seated height is 2.00 mm max — low enough to clear most potting compounds or conformal coatings, but tall enough that the part is easily visible for visual inspection after reflow.","metaTitle":"Murata LQH31MN101J03L 100µH Drum Core Inductor, 45mA","metaDescription":"Murata LQH31MN101J03L 100µH ±5% unshielded wirewound inductor. Last Buy status. 1206 SMD, 45mA, 12Ω DCR. 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":"±5%","Inductance":"100 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)":"12Ohm","Current Rating (Amps)":"45 mA","Height - Seated (Max)":"0.079\\\" (2.00mm)","Operating Temperature":"-40°C~85°C","Supplier Device Package":"1206 (3216 Metric)","Frequency - Self Resonant":"7MHz","Current - Saturation (Isat)":"-","Inductance Frequency - Test":"1 MHz"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.7400","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/23793266b202ae546e5047be20f0e556.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the DC resistance and self-resonant frequency of this inductor?","answer":"DC resistance is 12 Ω and the self-resonant frequency is 7 MHz. The inductance is tested at 1 MHz."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/murata-electronics/LQH31MN101J03L","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/murata-electronics/LQH31MN101J03L 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}}