{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LQH43MN470K03L","brand":"Murata Electronics","brandSlug":"murata-electronics","productSlug":"LQH43MN470K03L","canonicalUrl":"https://icboms.com/murata-electronics/LQH43MN470K03L","factsUrl":"https://icboms.com/api/mcp/products/LQH43MN470K03L","rawCanonicalId":null},"summary":{"shortDescription":"Murata Electronics LQH43 series, Drum Core Wirewound Inductor, 47 µH, ±10%, 220 mA, 1.5 Ohm DCR, Unshielded, 1812 (4532 Metric), Surface Mount.","salesMarkdown":"## Active 47 µH drum-core for general-purpose filtering The Murata LQH43MN470K03L is an active-production drum-core wirewound inductor in the LQH43 series, rated 47 µH ±10% at 1 MHz test frequency. The 220 mA current rating and 1.5 Ohm max DCR define the DC bias ceiling — push the current above 220 mA and the inductance starts to roll off as the ferrite core saturates, while the I²R loss at that current is about 73 mW, well within the 85°C ambient limit. ## Unshielded 1812 footprint for board-level filtering Unshielded construction means the magnetic field extends beyond the body — keep adjacent traces or sensitive components at least one body width away to avoid coupling. Self-resonant frequency is 10 MHz — above that the inductor behaves capacitively, so this part suits DC-DC converter output filters and power-line smoothing up to a few MHz. The Q factor of 35 at 1 MHz indicates moderate energy storage efficiency at that frequency; for higher-Q needs consider the air-core or ferrite-tuned alternatives in the same family. ## Sourcing and compliance for BOM integration Operating temperature range is -40°C to 85°C, covering most commercial and industrial environments. The ferrite core material is stable across this band; the inductance shift with temperature is typically under 5% from -25°C to 85°C for this material class.","metaTitle":"Murata LQH43MN470K03L 47 µH Inductor, 220 mA, 1812","metaDescription":"Murata LQH43MN470K03L drum core wirewound inductor, 47 µH ±10%, 220 mA, 1.5 Ohm DCR, 1812 SMD, -40°C to 85°C. Active production, available 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":"47 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)":"1.5Ohm Max","Current Rating (Amps)":"220 mA","Height - Seated (Max)":"0.110\\\" (2.80mm)","Operating Temperature":"-40°C ~ 85°C","Supplier Device Package":"1812","Frequency - Self Resonant":"10MHz","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 is the closest pin-compatible alternative to LQH43MN470K03L in this inductor family?","answer":"The LQH43MN series includes other inductance values in the same 1812 footprint and pinout — for example, the LQH43MN100K03L (10 µH) or LQH43MN220K03L (22 µH). All share the same unshielded drum-core construction, 1.5 Ohm DCR max, and 220 mA current rating, so a BOM swap requires only changing the inductance value, not the PCB layout."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/murata-electronics/LQH43MN470K03L","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/murata-electronics/LQH43MN470K03L 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}}