{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LQH43MN120K03L","brand":"Murata Electronics","brandSlug":"murata-electronics","productSlug":"LQH43MN120K03L","canonicalUrl":"https://icboms.com/murata-electronics/LQH43MN120K03L","factsUrl":"https://icboms.com/api/mcp/products/LQH43MN120K03L","rawCanonicalId":null},"summary":{"shortDescription":"Murata Electronics LQH43 series drum core wirewound inductor, 12 µH, ±10%, 380 mA, 620 mOhm DCR, unshielded, 1812 (4532 Metric) surface mount package.","salesMarkdown":"## 12 µH wirewound for DC-DC filtering and signal conditioning The Murata LQH43MN120K03L is a drum core wirewound inductor in the LQH43 series, delivering 12 µH ±10% inductance in an unshielded 1812 footprint. Rated for 380 mA continuous current with a max DCR of 620 mOhm, this part suits power rail filtering and low-current DC-DC converter output stages where the self-resonant frequency of 21 MHz keeps the inductor effective well into the switching noise band. The ferrite core material and wirewound construction give a Q factor of 35 at 1 MHz, which matters when the inductor sits in a resonant tank or impedance-matching network — the Q directly sets the bandwidth and insertion loss. ## Unshielded trade-off and board integration Unshielded construction means the magnetic field radiates into the surrounding PCB area — keep sensitive analog traces or high-impedance nodes at least one package width away to avoid coupling.","metaTitle":"Murata LQH43MN120K03L 12 µH Unshielded Wirewound Inductor","metaDescription":"Murata LQH43MN120K03L drum core wirewound inductor, 12 µH ±10%, 380 mA, 620 mOhm DCR, 1812 package, active production. Sourced 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":"LQH43","Package":"Tape & Reel (TR)","Ratings":"-","Q @ Freq":"35 @ 1MHz","Shielding":"Unshielded","Tolerance":"±10%","Inductance":"12 µH","Mounting Type":"Surface Mount","Package / Case":"1812 (4532 Metric)","Product Status":"Active","Material - Core":"Ferrite","lifecycle_stage":"unknown","Size / Dimension":"0.177\\\" L x 0.126\\\" W (4.50mm x 3.20mm)","Base Product Number":"LQH43MN","DC Resistance (DCR)":"620mOhm Max","Current Rating (Amps)":"380 mA","Height - Seated (Max)":"0.110\\\" (2.80mm)","Operating Temperature":"-40°C ~ 85°C","Supplier Device Package":"1812","Frequency - Self Resonant":"21MHz","Current - Saturation (Isat)":"-","Inductance Frequency - Test":"1 MHz"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.2225","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/d1493e4ce66984c31e9b5c6bbb04d9e5.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the inductance and current rating of LQH43MN120K03L?","answer":"The inductor provides 12 µH ±10% with a 380 mA continuous current rating. The DC resistance is 620 mOhm max, and the self-resonant frequency is 21 MHz."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/murata-electronics/LQH43MN120K03L","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/murata-electronics/LQH43MN120K03L 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}}