{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LQH43NH222J03L","brand":"Murata Electronics","brandSlug":"murata-electronics","productSlug":"LQH43NH222J03L","canonicalUrl":"https://icboms.com/murata-electronics/LQH43NH222J03L","factsUrl":"https://icboms.com/api/mcp/products/LQH43NH222J03L","rawCanonicalId":null},"summary":{"shortDescription":"Murata Electronics LQH43 series drum core wirewound inductor, 2.2 mH ±5%, 30 mA rated current, 36.72 Ohm DCR max, AEC-Q200 qualified, 1812 (4532 Metric) surface mount package.","salesMarkdown":"## 2.2 mH, 30 mA — where the DCR sets the limit The Murata LQH43NH222J03L is a drum-core wirewound inductor in the LQH43 series, delivering 2.2 mH inductance in a standard 1812 surface-mount footprint. The 30 mA current rating is the DC bias ceiling — at that current the 36.72 Ohm max DCR produces an I²R loss of roughly 33 mW, which is the dominant self-heating term in free-air mounting. ## AEC-Q200 qualification and temperature range This inductor carries AEC-Q200 qualification, the automotive passive-component stress-test standard covering thermal shock, vibration, moisture resistance, and solder heat. ## Self-resonant frequency and Q factor The self-resonant frequency of 1.3 MHz defines the upper bound for inductive behaviour — above this frequency the parasitic capacitance dominates and the part behaves as a capacitor. The Q factor of 40 at 252 kHz indicates moderate efficiency in resonant tank circuits at that frequency, but the high DCR limits the achievable Q in low-impedance paths.","metaTitle":"Murata LQH43NH222J03L Inductor, 2.2 mH, 30 mA, 1812","metaDescription":"Murata LQH43NH222J03L drum core wirewound inductor, 2.2 mH ±5%, 30 mA rated current, 36.72 Ohm DCR max, AEC-Q200 qualified.","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":"AEC-Q200","Features":"-","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":"LQH43NH","DC Resistance (DCR)":"36.72Ohm Max","Current Rating (Amps)":"30 mA","Height - Seated (Max)":"0.110\\\" (2.80mm)","Operating Temperature":"-40°C~125°C","Supplier Device Package":"1812","Frequency - Self Resonant":"1.3MHz","Current - Saturation (Isat)":"-","Inductance Frequency - Test":"1 MHz"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.6900","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/b8fe98626664ecf0068858b1162f6220.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the inductance and current rating of LQH43NH222J03L?","answer":"The inductor provides 2.2 mH inductance with ±5% tolerance and is rated for 30 mA DC current. The maximum DC resistance is 36.72 Ohm, which governs the I²R loss at rated current."},{"question":"What package does LQH43NH222J03L come in?","answer":"Available in tape-and-reel or cut-tape packaging."},{"question":"What is the self-resonant frequency of LQH43NH222J03L?","answer":"The self-resonant frequency is 1.3 MHz. Above this frequency the inductor's parasitic capacitance dominates and the component behaves capacitively, so it should be used below this frequency for inductive applications."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/murata-electronics/LQH43NH222J03L","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/murata-electronics/LQH43NH222J03L 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}}