{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LQH43NN222J03L","brand":"Murata Electronics","brandSlug":"murata-electronics","productSlug":"LQH43NN222J03L","canonicalUrl":"https://icboms.com/murata-electronics/LQH43NN222J03L","factsUrl":"https://icboms.com/api/mcp/products/LQH43NN222J03L","rawCanonicalId":null},"summary":{"shortDescription":"Murata Electronics LQH43 series drum core wirewound inductor, 2.2 mH, 30 mA, ±5%, unshielded, 1812 (4532 Metric) SMD, ferrite core.","salesMarkdown":"## Inductance, current rating, and DC resistance The LQH43NN222J03L is a 2.2 mH unshielded wirewound inductor from Murata's LQH43 series, rated for 30 mA continuous current with a maximum DC resistance of 50 Ohm. The 2.2 mH value and the 30 mA current rating define its role in filtering or energy-storage circuits where the load current stays below the DC bias saturation point. ## 1812 footprint and board-fit details The ferrite core and unshielded construction mean the magnetic field extends beyond the package — keep adjacent traces and components clear of the inductor's stray field, especially in tightly packed RF or power supply layouts. ## Frequency response and Q factor A minimum Q of 40 at 252 kHz and a self-resonant frequency of 1.3 MHz set the usable band. Below 1.3 MHz the component behaves as an inductor; above that frequency parasitic capacitance dominates and the impedance turns capacitive. The Q at 252 kHz is high enough for tuned LC filter applications in that range, but the 50 Ohm DCR means the inductor is not a low-loss choice for high-current switching regulators.","metaTitle":"Murata LQH43NN222J03L 2.2 mH Unshielded Wirewound Inductor","metaDescription":"Murata LQH43NN222J03L drum core wirewound inductor, 2.2 mH ±5%, 30 mA, 50 Ohm DCR, 1812 SMD. Active production, sourced per RFQ.","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 @ 252kHz","Shielding":"Unshielded","Tolerance":"±5%","Inductance":"2.2 mH","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)":"50Ohm Max","Current Rating (Amps)":"30 mA","Height - Seated (Max)":"0.110\\\" (2.80mm)","Operating Temperature":"-40°C ~ 85°C","Supplier Device Package":"1812 (4532 Metric)","Frequency - Self Resonant":"1.3MHz","Current - Saturation (Isat)":"-","Inductance Frequency - Test":"1 kHz"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.5500","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/d0d6b1d39c76e30b3c05600906460c39.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is LQH43NN222J03L's listed type and series?","answer":"The type is Drum Core, Wirewound and the series is LQH43. It is an unshielded ferrite-core inductor in the 1812 SMD package."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/murata-electronics/LQH43NN222J03L","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/murata-electronics/LQH43NN222J03L 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}}