{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LQH31MN120J03L","brand":"Murata Electronics","brandSlug":"murata-electronics","productSlug":"LQH31MN120J03L","canonicalUrl":"https://icboms.com/murata-electronics/LQH31MN120J03L","factsUrl":"https://icboms.com/api/mcp/products/LQH31MN120J03L","rawCanonicalId":null},"summary":{"shortDescription":"Murata Electronics LQH31 series, Drum Core Wirewound Inductor, 12 µH, ±5%, 95 mA, 2.7 Ohm DCR, Unshielded, 1206 (3216 Metric), Tape & Reel.","salesMarkdown":"## 12 µH drum core in the 1206 footprint The Murata LQH31MN120J03L is a 12 µH unshielded wirewound inductor in the 1206 (3216 Metric) surface-mount package, part of the LQH31 series. It is rated for 95 mA continuous current with a DC resistance of 2.7 Ohm. The ferrite drum core construction gives it a self-resonant frequency of 18 MHz, so it stays inductive well into the HF band — useful for filtering in DC-DC converters and signal conditioning circuits that operate below that point. ## What the ratings mean for the circuit The 95 mA current rating is the DC bias current at which the inductance typically drops by 10% — stay below that to keep the inductance close to 12 µH. The 2.7 Ohm DCR means an I²R loss of about 24 mW at full rated current, which is fine for most signal and low-power rail filtering. Q factor is 35 at 5 MHz, giving a reasonable efficiency for tuned circuits or impedance matching at that frequency. The ±5% tolerance is tight enough for most filter designs where the inductance value matters. ## Package and board-fit Reflow-solder compatible; tape-and-reel packaging for automated pick-and-place. No shielding, so keep sensitive traces or other magnetics at least a few mm away to avoid coupling. The unshielded construction means it radiates a small magnetic field — fine for low-current signal paths, but not ideal directly under a sensitive ADC or RF section without layout care.","metaTitle":"Murata LQH31MN120J03L 12 µH Inductor, 95 mA, 1206","metaDescription":"Murata LQH31MN120J03L drum core wirewound inductor, 12 µH ±5%, 95 mA, 2.7 Ohm DCR, 1206 SMD. Active production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Inductors & Chokes"],"specifications":{"Mfr":"Murata Electronics","Type":"Drum Core, Wirewound","Series":"LQH31","Package":"Tape & Reel (TR)","Ratings":"-","Q @ Freq":"35 @ 5MHz","Shielding":"Unshielded","Tolerance":"±5%","Inductance":"12 µH","Mounting Type":"Surface Mount","Package / Case":"1206 (3216 Metric)","Product Status":"Active","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)":"2.7Ohm","Current Rating (Amps)":"95 mA","Height - Seated (Max)":"0.079\\\" (2.00mm)","Operating Temperature":"-40°C ~ 85°C","Supplier Device Package":"1206 (3216 Metric)","Frequency - Self Resonant":"18MHz","Current - Saturation (Isat)":"-","Inductance Frequency - Test":"1 MHz"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.3128","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/23793266b202ae546e5047be20f0e556.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the LQH31MN120J03L's listed type and series?","answer":"It is a drum core wirewound inductor from the Murata LQH31 series, unshielded, with a ferrite core."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/murata-electronics/LQH31MN120J03L","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/murata-electronics/LQH31MN120J03L when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}