{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LQH43NN821K03L","brand":"Murata Electronics","brandSlug":"murata-electronics","productSlug":"LQH43NN821K03L","canonicalUrl":"https://icboms.com/murata-electronics/LQH43NN821K03L","factsUrl":"https://icboms.com/api/mcp/products/LQH43NN821K03L","rawCanonicalId":null},"summary":{"shortDescription":"Murata Electronics LQH43 series, Drum Core Wirewound Inductor, 820 µH, 60 mA, 20.5 Ohm DCR, Unshielded, 1812 (4532 Metric) SMD, Tape & Reel.","salesMarkdown":"## 820 µH in a 1812 footprint The Murata LQH43NN821K03L is an 820 µH drum core wirewound inductor in the 1812 (4532 Metric) SMD package. It is rated for 60 mA continuous current with a 20.5 Ohm max DCR. The unshielded ferrite core construction gives a self-resonant frequency of 2.2 MHz, which sets the upper bound for the inductor's useful impedance in filter or DC-DC applications. ## What the ratings mean on the bench The 60 mA current rating is the DC bias current at which the inductance typically drops by 10% — push beyond that and the inductance falls off quickly as the core saturates. The inductance is tested at 1 kHz, but the self-resonant frequency at 2.2 MHz tells you where the impedance peaks — above that the part looks capacitive.","metaTitle":"Murata LQH43NN821K03L 820µH Inductor, 60mA, 1812","metaDescription":"Murata LQH43NN821K03L drum core wirewound inductor, 820µH, 60mA, 20.5Ω DCR, 1812 SMD. Active production, sourced to order. Request a quote.","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":"±10%","Inductance":"820 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)":"20.5Ohm Max","Current Rating (Amps)":"60 mA","Height - Seated (Max)":"0.110\\\" (2.80mm)","Operating Temperature":"-40°C ~ 105°C","Supplier Device Package":"1812 (4532 Metric)","Frequency - Self Resonant":"2.2MHz","Current - Saturation (Isat)":"-","Inductance Frequency - Test":"1 kHz"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.2818","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/d0d6b1d39c76e30b3c05600906460c39.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LQH43NN821K03L/alternatives.json"},"ai":{"faq":[{"question":"What is the LQH43NN821K03L's inductance and current rating?","answer":"Inductance is 820 µH at 1 kHz test frequency. The DC current rating is 60 mA, with a maximum DCR of 20.5 Ohms."},{"question":"Is the LQH43NN821K03L shielded?","answer":"No, it is unshielded. The ferrite drum core construction means the magnetic field radiates from the part — keep sensitive traces or other magnetics at least one part width away to avoid coupling."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/murata-electronics/LQH43NN821K03L","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/murata-electronics/LQH43NN821K03L 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}}