{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LQH43NN220K03L","brand":"Murata Electronics","brandSlug":"murata-electronics","productSlug":"LQH43NN220K03L","canonicalUrl":"https://icboms.com/murata-electronics/LQH43NN220K03L","factsUrl":"https://icboms.com/api/mcp/products/LQH43NN220K03L","rawCanonicalId":null},"summary":{"shortDescription":"Murata Electronics LQH43 series drum core wirewound inductor, LQH43NN220K03L, 22 µH ±10%, 320 mA, 940 mOhm DCR, unshielded, 1812 (4532 Metric) package.","salesMarkdown":"## 22 µH wirewound in a 1812 footprint The LQH43NN220K03L is a 22 µH drum core wirewound inductor from Murata's LQH43 series, built on a ferrite core and rated for 320 mA continuous current. ## Unshielded construction and frequency limits Unshielded construction means the magnetic field extends beyond the core — adjacent traces carrying sensitive analog signals or high-speed edges should be kept at least one part-width away to avoid coupling. The self-resonant frequency of 15 MHz marks the upper bound for inductive impedance; above that the part behaves capacitively, so it is best suited for DC-DC converter switching frequencies below 5 MHz or as a filter element in the low-MHz range. Q factor is 35 at 1 MHz, measured at the same test frequency as the inductance — this is a moderate Q for a wirewound in this package, adequate for general-purpose filtering and energy storage where low loss is not the primary constraint. ## 1812 surface-mount footprint Supplied on tape and reel with cut-tape option, the part is compatible with automated assembly lines and can be ordered in the quantity that matches the build.","metaTitle":"Murata LQH43NN220K03L 22 µH Unshielded Inductor, 320 mA","metaDescription":"Murata LQH43NN220K03L drum core wirewound inductor, 22 µH ±10%, 320 mA, 940 mOhm DCR, 1812 package. Active production, sourced per RFQ.","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":"LQH43NN","DC Resistance (DCR)":"940mOhm Max","Current Rating (Amps)":"320 mA","Height - Seated (Max)":"0.110\\\" (2.80mm)","Operating Temperature":"-40°C ~ 105°C","Supplier Device Package":"1812 (4532 Metric)","Frequency - Self Resonant":"15MHz","Current - Saturation (Isat)":"-","Inductance Frequency - Test":"1 MHz"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.2818","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/d0d6b1d39c76e30b3c05600906460c39.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the current rating and DC resistance of LQH43NN220K03L?","answer":"Rated for 320 mA continuous current with a maximum DC resistance of 940 mOhm. The I²R loss at full current is about 96 mW, well within the part's thermal budget."},{"question":"What package does LQH43NN220K03L use?","answer":"It comes in a standard 1812 (4532 Metric) surface-mount package, 4.50 mm × 3.20 mm body, 2.80 mm seated height."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/murata-electronics/LQH43NN220K03L","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/murata-electronics/LQH43NN220K03L 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}}