{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LQH43MN681J03L","brand":"Murata Electronics","brandSlug":"murata-electronics","productSlug":"LQH43MN681J03L","canonicalUrl":"https://icboms.com/murata-electronics/LQH43MN681J03L","factsUrl":"https://icboms.com/api/mcp/products/LQH43MN681J03L","rawCanonicalId":null},"summary":{"shortDescription":"Murata Electronics LQH43 series, Drum Core Wirewound Inductor, 680 µH, ±5%, 65 mA, 17 Ohm DCR, Unshielded, 1812 (4532 Metric), Surface Mount.","salesMarkdown":"## Component identity and key parametrics The Murata LQH43MN681J03L is a drum-core, wirewound inductor from the LQH43 series, specified at 680 µH with a ±5% tolerance. It is an unshielded part, so the magnetic field extends beyond the component body — keep sensitive traces or adjacent magnetics at least one body width away to avoid coupling. Rated for 65 mA continuous current with a maximum DC resistance of 17 Ohm. The 65 mA ceiling is the thermal limit at 85 °C ambient — derate linearly above 70 °C if the board sees sustained airflow below 0.5 m/s. Self-resonant frequency is 2.5 MHz, and the Q factor measures 40 at 796 kHz. Above 2.5 MHz the inductor behaves capacitively — not useful as a filter element past that point. The ferrite core and wirewound construction mean the part is heavier than a multilayer chip inductor of the same footprint — verify solder-paste volume on the reflow profile to avoid tombstoning. Operating temperature range is -40 °C to 85 °C, which covers industrial and automotive cabin environments but not under-hood or engine-bay zones. The part is unshielded, so a pick-and-place nozzle with a soft tip is recommended to avoid cracking the ferrite body during placement.","metaTitle":"Murata LQH43MN681J03L 680 µH Unshielded Wirewound Inductor","metaDescription":"Murata LQH43MN681J03L, 680 µH unshielded wirewound inductor, 65 mA, 17 Ohm DCR, 1812 package. Active production. RFQ for pricing and availability.","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":"40 @ 796kHz","Shielding":"Unshielded","Tolerance":"±5%","Inductance":"680 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)":"17Ohm Max","Current Rating (Amps)":"65 mA","Height - Seated (Max)":"0.110\\\" (2.80mm)","Operating Temperature":"-40°C ~ 85°C","Supplier Device Package":"1812","Frequency - Self Resonant":"2.5MHz","Current - Saturation (Isat)":"-","Inductance Frequency - Test":"1 kHz"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.4500","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 LQH43MN681J03L?","answer":"The inductor is specified at 680 µH with a ±5% tolerance and a continuous current rating of 65 mA. The DC resistance is 17 Ohm maximum."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/murata-electronics/LQH43MN681J03L","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/murata-electronics/LQH43MN681J03L 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}}