{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LQH43MN220K03L","brand":"Murata Electronics","brandSlug":"murata-electronics","productSlug":"LQH43MN220K03L","canonicalUrl":"https://icboms.com/murata-electronics/LQH43MN220K03L","factsUrl":"https://icboms.com/api/mcp/products/LQH43MN220K03L","rawCanonicalId":null},"summary":{"shortDescription":"Murata Electronics LQH43 series, Drum Core Wirewound Inductor, 22 µH, ±10%, 320 mA, 940 mOhm DCR, Unshielded, 1812 (4532 Metric) SMD.","salesMarkdown":"## 22 µH, 320 mA — what these ratings mean for your board The Murata LQH43MN220K03L is a drum-core wirewound inductor in the LQH43 series, delivering 22 µH ±10% at a rated current of 320 mA. The unshielded ferrite core means the magnetic field is not contained within a magnetic shield — adjacent traces or components within a few millimeters may pick up stray flux, so keep sensitive analog or RF circuitry at least one body width away. ## 1812 footprint — board-fit and assembly The footprint matches standard 1812 land patterns; the 2.80 mm height is low enough to clear most enclosures but tall enough that a pick-and-place nozzle with a 4 mm ID cup handles it cleanly. Available in tape and reel (TR) or cut tape (CT) — the reel format suits volume reflow assembly; cut tape works for prototype builds or small-batch runs where you do not want to commit to a full reel. ## Frequency band — where this inductor works best The self-resonant frequency is 15 MHz — above this frequency the inductor behaves capacitively, so it is effective as a filter or choke up to roughly 10 MHz. The Q factor of 35 at 1 MHz tells you the ratio of stored energy to dissipated energy at that test frequency; a Q of 35 is moderate — fine for power rail filtering and DC-DC converter output chokes, but not optimized for high-Q resonant tank circuits.","metaTitle":"Murata LQH43MN220K03L 22 µH Unshielded Inductor, 320 mA","metaDescription":"Murata LQH43MN220K03L drum core wirewound inductor, 22 µH ±10%, 320 mA, 940 mOhm DCR, 1812 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":"LQH43","Package":"Tape & Reel (TR) Cut Tape (CT)","Ratings":"-","Q @ Freq":"35 @ 1MHz","Shielding":"Unshielded","Tolerance":"±10%","Inductance":"22 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)":"940mOhm Max","Current Rating (Amps)":"320 mA","Height - Seated (Max)":"0.110\\\" (2.80mm)","Operating Temperature":"-40°C ~ 85°C","Supplier Device Package":"1812","Frequency - Self Resonant":"15MHz","Current - Saturation (Isat)":"-","Inductance Frequency - Test":"1 MHz"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.4300","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/d1493e4ce66984c31e9b5c6bbb04d9e5.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What compliance documentation is available for this inductor?","answer":"The evidence does not list specific compliance certifications (RoHS, REACH, UL, IEC) for this order code. Standard Murata documentation for the LQH43 series is available from the manufacturer; confirm the specific compliance status with your BOM requirements at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/murata-electronics/LQH43MN220K03L","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/murata-electronics/LQH43MN220K03L 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}}