{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LQH43CN471K03L","brand":"Murata Electronics","brandSlug":"murata-electronics","productSlug":"LQH43CN471K03L","canonicalUrl":"https://icboms.com/murata-electronics/LQH43CN471K03L","factsUrl":"https://icboms.com/api/mcp/products/LQH43CN471K03L","rawCanonicalId":null},"summary":{"shortDescription":"Murata Electronics LQH43 series, Drum Core Wirewound Inductor, LQH43CN471K03L, 470 µH, 90 mA, 8.5 Ohm DCR, Unshielded, 1812 (4532 Metric) SMD.","salesMarkdown":"## A 470 µH wirewound for filtering and storage The Murata LQH43CN471K03L is a drum-core wirewound inductor in the LQH43 series, delivering 470 µH ±10% in an unshielded 1812 (4532 Metric) SMD package. Rated for 90 mA DC with a maximum DC resistance of 8.5 Ohm, this part suits low-current filtering and energy-storage roles where the 470 µH value provides high impedance at switching frequencies below its 3 MHz self-resonant point. ## What the 90 mA and 8.5 Ohm DCR mean for your circuit The 90 mA current rating is the DC bias limit at which the inductance typically drops by 10% — stay below this to keep the 470 µH value stable in a buck converter or EMI filter. An 8.5 Ohm DCR at 90 mA produces an I²R loss of about 69 mW — negligible for most boards, but the voltage drop across the winding (0.77 V) matters if the inductor sits in a low-voltage rail where every millivolt counts. The self-resonant frequency of 3 MHz means this inductor looks inductive up to roughly 3 MHz; above that, parasitic capacitance dominates and the impedance rolls off — use it for switching frequencies well below 3 MHz, say 300 kHz or lower, to stay in the inductive region. ## Rework and board-fit for the 1812 package Unshielded construction means the magnetic field fringes into the surrounding board area — keep sensitive traces or other magnetics at least one package width away to avoid coupling.","metaTitle":"Murata LQH43CN471K03L Inductor, 470 µH, 90 mA, 1812","metaDescription":"Murata LQH43CN471K03L wirewound drum core inductor, 470 µH ±10%, 90 mA, 8.5 Ohm 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":"-","Shielding":"Unshielded","Tolerance":"±10%","Inductance":"470 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":"LQH43CN","DC Resistance (DCR)":"8.5Ohm Max","Current Rating (Amps)":"90 mA","Height - Seated (Max)":"0.110\\\" (2.80mm)","Operating Temperature":"-40°C ~ 85°C","Supplier Device Package":"1812","Frequency - Self Resonant":"3MHz","Current - Saturation (Isat)":"-","Inductance Frequency - Test":"1 kHz"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.4000","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/285342e99fdeeb4e955f855a995fa4ac.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/murata-electronics/LQH43CN471K03L","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/murata-electronics/LQH43CN471K03L 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}}