{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LQH43MN2R2M03L","brand":"Murata Electronics","brandSlug":"murata-electronics","productSlug":"LQH43MN2R2M03L","canonicalUrl":"https://icboms.com/murata-electronics/LQH43MN2R2M03L","factsUrl":"https://icboms.com/api/mcp/products/LQH43MN2R2M03L","rawCanonicalId":null},"summary":{"shortDescription":"Murata Electronics LQH43 series, Drum Core Wirewound Inductor, 2.2 µH, ±20%, 500 mA, 300 mOhm DCR, Unshielded, 1812 (4532 Metric), Surface Mount.","salesMarkdown":"## Core construction and the 62 MHz ceiling The LQH43MN2R2M03L is a drum-core, wirewound inductor on a ferrite core — unshielded, so stray field couples into adjacent traces if the layout crowds the magnetic path. The self-resonant frequency of 62 MHz sets the usable ceiling: above that the inductance rolls off and the part behaves capacitively. For a 2.2 µH value, that SRF is typical of a wirewound in this footprint; a multilayer ceramic would push SRF higher but saturate at a fraction of the current. Rated 500 mA continuous with a maximum DC resistance of 300 mOhm. At full rated current the I²R loss is 75 mW — negligible in free air but worth a quick thermal check if the inductor sits next to a hot regulator or in a 85°C ambient. The ferrite core saturates gradually; the 500 mA figure is the heating limit, not the saturation knee. ## 1812 footprint and board-fit note The unshielded construction means the inductor radiates a fringe field; keep sensitive analog traces or high-impedance nodes at least one package width away. The ferrite core material is standard for this inductance and frequency band; no special handling beyond normal SMT reflow.","metaTitle":"Murata LQH43MN2R2M03L 2.2 µH Unshielded Inductor, 500 mA","metaDescription":"Murata LQH43MN2R2M03L drum core wirewound inductor, 2.2 µH, 500 mA, 300 mOhm DCR, 1812 package. Active production, sourced to order against 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)","Ratings":"-","Q @ Freq":"20 @ 1MHz","Shielding":"Unshielded","Tolerance":"±20%","Inductance":"2.2 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)":"300mOhm Max","Current Rating (Amps)":"500 mA","Height - Seated (Max)":"0.110\\\" (2.80mm)","Operating Temperature":"-40°C~85°C","Supplier Device Package":"1812","Frequency - Self Resonant":"62MHz","Current - Saturation (Isat)":"-","Inductance Frequency - Test":"1 MHz"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.2895","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/d1493e4ce66984c31e9b5c6bbb04d9e5.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the inductance tolerance and test frequency?","answer":"Inductance is 2.2 µH with ±20% tolerance, tested at 1 MHz. The Q factor is 20 minimum at that same frequency."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/murata-electronics/LQH43MN2R2M03L","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/murata-electronics/LQH43MN2R2M03L 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}}