{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LQH43NN6R8M03L","brand":"Murata Electronics","brandSlug":"murata-electronics","productSlug":"LQH43NN6R8M03L","canonicalUrl":"https://icboms.com/murata-electronics/LQH43NN6R8M03L","factsUrl":"https://icboms.com/api/mcp/products/LQH43NN6R8M03L","rawCanonicalId":null},"summary":{"shortDescription":"Murata Electronics LQH43 series drum core wirewound inductor, 6.8 µH, ±20%, 450 mA, 500 mOhm DCR, unshielded, 1812 (4532 Metric) SMD.","salesMarkdown":"## 6.8 µH power line filter with a 450 mA DC bias ceiling The Murata LQH43NN6R8M03L is a drum core wirewound inductor in the LQH43 series, delivering 6.8 µH ±20% inductance with a 450 mA current rating. That 450 mA figure is the DC bias ceiling — push past it and the inductance collapses as the core saturates, so the real-world filter current must stay below this limit with margin for ripple. The 500 mOhm maximum DCR sets the resistive loss: at 450 mA the I²R loss is 0.1 W, which the 1812 body dissipates into the board copper. The unshielded construction means the magnetic field radiates — keep sensitive traces and other inductors a board-width away to avoid coupling. ## Self-resonant frequency and usable band The self-resonant frequency is 31 MHz. Above that point the inductor behaves capacitively and the impedance drops, so the effective filtering band stops well below 31 MHz. The Q factor is 30 at 1 MHz, which tells you the core loss at that test frequency — adequate for a general-purpose power rail filter but not a tuned tank circuit. ## Active production — BOM-stable for design-in The LQH43 family includes other inductance values and tolerances, but a pin-compatible drop-in with the same 6.8 µH and 450 mA rating would need the same footprint and DCR profile — confirm the BOM position against the datasheet before committing.","metaTitle":"Murata LQH43NN6R8M03L 6.8 µH Inductor, 450 mA, 1812","metaDescription":"Murata LQH43NN6R8M03L drum core wirewound inductor, 6.8 µH ±20%, 450 mA, 500 mOhm DCR, 1812 SMD. Active production, sourced 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":"6.8 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":"LQH43NN","DC Resistance (DCR)":"500mOhm 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":"31MHz","Current - Saturation (Isat)":"-","Inductance Frequency - Test":"1 MHz"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.2818","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/d0d6b1d39c76e30b3c05600906460c39.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the inductance and current rating of this inductor?","answer":"The LQH43NN6R8M03L is a 6.8 µH ±20% drum core wirewound inductor rated for 450 mA with a 500 mOhm max DCR and a 31 MHz self-resonant frequency."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/murata-electronics/LQH43NN6R8M03L","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/murata-electronics/LQH43NN6R8M03L 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}}