{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LQH43MN1R2M03L","brand":"Murata Electronics","brandSlug":"murata-electronics","productSlug":"LQH43MN1R2M03L","canonicalUrl":"https://icboms.com/murata-electronics/LQH43MN1R2M03L","factsUrl":"https://icboms.com/api/mcp/products/LQH43MN1R2M03L","rawCanonicalId":null},"summary":{"shortDescription":"Murata Electronics LQH43 series, Drum Core Wirewound Inductor, LQH43MN1R2M03L, 1.2 µH, ±20%, 500 mA, 200 mOhm DCR, Unshielded, 1812 (4532 Metric) SMD.","salesMarkdown":"## 1.2 µH wirewound in the 1812 footprint The Murata LQH43MN1R2M03L is a drum-core, wirewound inductor in the LQH43 series, offering 1.2 µH inductance with a ±20% tolerance. Rated for 500 mA continuous current, it presents a maximum DC resistance of 200 mOhm — the DCR figure sets the I²R heating floor for the trace and the inductor body in a power rail filter. Unshielded construction means the magnetic field radiates beyond the component body; keep sensitive traces or low-level analog circuits at least a component-width away to avoid coupling. The ferrite core material handles the 1 MHz test frequency cleanly, and the self-resonant frequency of 100 MHz defines the upper limit for effective filtering — above that the inductor behaves capacitively. ## Active lifecycle and sourcing posture No pin-compatible second-source is listed on the record; the LQH43 series is Murata's own footprint family, so a drop-in replacement would require a parametric search within the same series or a cross-reference from a competing brand's 1812 wirewound offering. ## Temperature grade and board-fit parameters The unshielded body and ferrite core are the main selection constraints: if the application couples the inductor to a nearby magnetic sensor or a noise-sensitive oscillator, a shielded variant from the same LQH43 family would be the migration path.","metaTitle":"Murata LQH43MN1R2M03L Drum Core Inductor, 1.2 µH, 500 mA","metaDescription":"Murata LQH43MN1R2M03L wirewound inductor, 1.2 µH ±20%, 500 mA, 200 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)","Ratings":"-","Q @ Freq":"20 @ 1MHz","Shielding":"Unshielded","Tolerance":"±20%","Inductance":"1.2 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)":"200mOhm 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":"100MHz","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 and current rating of the LQH43MN1R2M03L?","answer":"The inductor is rated for 1.2 µH ±20% at 1 MHz, with a continuous current rating of 500 mA and a maximum DC resistance of 200 mOhm. The self-resonant frequency is 100 MHz, above which the component behaves capacitively."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/murata-electronics/LQH43MN1R2M03L","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/murata-electronics/LQH43MN1R2M03L 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}}