{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LQH43NN8R2M03L","brand":"Murata Electronics","brandSlug":"murata-electronics","productSlug":"LQH43NN8R2M03L","canonicalUrl":"https://icboms.com/murata-electronics/LQH43NN8R2M03L","factsUrl":"https://icboms.com/api/mcp/products/LQH43NN8R2M03L","rawCanonicalId":null},"summary":{"shortDescription":"Murata Electronics LQH43 series, Drum Core Wirewound Inductor, LQH43NN8R2M03L, 8.2 µH, ±20%, 450 mA, 560 mOhm DCR, Unshielded, 1812 (4532 Metric) SMD.","salesMarkdown":"## Core parametrics and what they mean for your filter stage The Murata LQH43NN8R2M03L is a drum-core wirewound inductor in the LQH43 series, offering 8.2 µH inductance at 1 MHz test frequency with ±20% tolerance. Its 450 mA current rating sets the DC bias ceiling — stay below that to keep inductance from collapsing due to core saturation. DCR is 560 mOhm max, which at 450 mA means about 113 mW of copper loss — fine for most signal and low-power filtering, but worth a quick thermal check if the inductor sits near other heat sources in a tight layout. ## Frequency limits and field leakage Self-resonant frequency is 27 MHz — above that the part behaves capacitive, so keep your switching or signal frequency well below that to stay in the inductive region. The Q factor of 30 at 1 MHz tells you the AC loss is moderate; fine for a buck converter output filter or a noise filter on a 5V rail. This is an unshielded drum-core construction. The magnetic field extends outside the body, so adjacent traces or components on the same 1812 footprint area may pick up stray flux. In a sensitive analog chain or a high-density board, leave a bit of clearance or switch to a shielded variant. ## Board-fit and temperature envelope Operating range is -40°C to 105°C, covering most industrial and automotive cabin environments.","metaTitle":"Murata LQH43NN8R2M03L 8.2 µH Unshielded Inductor, 450 mA","metaDescription":"Murata LQH43NN8R2M03L drum-core wirewound inductor, 8.2 µH ±20%, 450 mA, 560 mOhm DCR, 1812 SMD. 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":"30 @ 1MHz","Shielding":"Unshielded","Tolerance":"±20%","Inductance":"8.2 µH","Mounting Type":"Surface Mount","Package / Case":"1812 (4532 Metric)","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)":"560mOhm Max","Current Rating (Amps)":"450 mA","Height - Seated (Max)":"0.110\\\" (2.80mm)","Operating Temperature":"-40°C ~ 105°C","Supplier Device Package":"1812 (4532 Metric)","Frequency - Self Resonant":"27MHz","Current - Saturation (Isat)":"-","Inductance Frequency - Test":"1 MHz"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.8500","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/d0d6b1d39c76e30b3c05600906460c39.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy LQH43NN8R2M03L and how do I get a price?","answer":"This part is available to order against an RFQ. Submit your target quantity and we will confirm current availability and pricing from our supply channels."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/murata-electronics/LQH43NN8R2M03L","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/murata-electronics/LQH43NN8R2M03L 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}}