{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LQH43MN820K03L","brand":"Murata Electronics","brandSlug":"murata-electronics","productSlug":"LQH43MN820K03L","canonicalUrl":"https://icboms.com/murata-electronics/LQH43MN820K03L","factsUrl":"https://icboms.com/api/mcp/products/LQH43MN820K03L","rawCanonicalId":null},"summary":{"shortDescription":"Murata Electronics LQH43 series drum core wirewound inductor, 82 µH, 170 mA, unshielded, ferrite core, 1812 (4532 Metric) SMD package.","salesMarkdown":"## 82 µH at 170 mA — filtering or decoupling fit The LQH43MN820K03L is a Murata drum core wirewound inductor rated at 82 µH ±10% with a continuous current of 170 mA. The 2.2 Ohm max DCR means the DC voltage drop across the part at full rated current is about 0.37 V — a factor to budget in low-voltage rails where every millivolt of headroom matters. Unshielded construction and a ferrite core keep the self-resonant frequency at 7.5 MHz, so this choke is a natural fit for low-frequency filtering or DC bias decoupling below that band. The Q factor of 35 at 1 MHz gives a reasonable selectivity for tuned circuits if the application can tolerate the unshielded field. ## Surface-mount footprint and temperature envelope The ferrite core material and wirewound construction deliver stable inductance over the temperature band, though the unshielded design means the inductor radiates a magnetic field — keep sensitive traces or low-level analog circuits at least a few mm away.","metaTitle":"Murata LQH43MN820K03L 82 µH Unshielded Inductor, 170 mA","metaDescription":"Murata LQH43MN820K03L drum core wirewound inductor, 82 µH ±10%, 170 mA rated current, 2.2 Ohm DCR, 1812 SMD, -40 to +85°C.","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":"35 @ 1MHz","Shielding":"Unshielded","Tolerance":"±10%","Inductance":"82 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)":"2.2Ohm Max","Current Rating (Amps)":"170 mA","Height - Seated (Max)":"0.110\\\" (2.80mm)","Operating Temperature":"-40°C ~ 85°C","Supplier Device Package":"1812","Frequency - Self Resonant":"7.5MHz","Current - Saturation (Isat)":"-","Inductance Frequency - Test":"1 MHz"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.4300","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 LQH43MN820K03L?","answer":"82 µH ±10% with a rated current of 170 mA. The DC resistance is 2.2 Ohm max, and the self-resonant frequency is 7.5 MHz."},{"question":"Is LQH43MN820K03L shielded or unshielded?","answer":"It is an unshielded drum core inductor. The ferrite core is open, so magnetic flux radiates from the component — plan board layout accordingly."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/murata-electronics/LQH43MN820K03L","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/murata-electronics/LQH43MN820K03L 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}}