{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LQH43NN221J03L","brand":"Murata Electronics","brandSlug":"murata-electronics","productSlug":"LQH43NN221J03L","canonicalUrl":"https://icboms.com/murata-electronics/LQH43NN221J03L","factsUrl":"https://icboms.com/api/mcp/products/LQH43NN221J03L","rawCanonicalId":null},"summary":{"shortDescription":"Murata Electronics LQH43 series drum core wirewound inductor, 220 µH, ±5%, 110 mA, 5.4 Ohm DCR, unshielded, 1812 (4532 Metric) SMD package.","salesMarkdown":"## 220 µH wirewound in a 1812 footprint The Murata LQH43NN221J03L is a drum core wirewound inductor from the LQH43 series, built for general-purpose filtering and decoupling in surface-mount designs. It delivers 220 µH inductance with a ±5% tolerance, rated at 110 mA continuous current. ## Parametric fit: Q, SRF, and the 1 MHz test point A Q factor of 40 at 796 kHz indicates moderate ac losses in the ferrite core at that frequency — adequate for power-line filtering and dc-dc converter input/output stages where the ripple fundamental sits in the hundreds of kHz. The self-resonant frequency of 4.5 MHz defines the upper bound for inductive behaviour; above that the part becomes capacitive. Inductance is tested at 1 MHz, which is above the Q test frequency but still well below SRF — the value quoted is the nominal inductance at that test condition, not a derated figure. The unshielded construction means stray flux can couple into adjacent traces or components — keep sensitive routing or low-level analog signals at least one part-width away. Supplied on tape and reel (cut tape option available), it is compatible with standard pick-and-place for 1812 footprints. No special bake-out is required for MSL if stored per JEDEC moisture sensitivity guidelines.","metaTitle":"Murata LQH43NN221J03L Inductor, 220 µH, 110 mA, 1812","metaDescription":"Murata LQH43NN221J03L drum core wirewound inductor, 220 µH, 110 mA, 5.4 Ohm DCR, 1812 SMD. Active production. Quoted to order.","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":"220 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)":"5.4Ohm Max","Current Rating (Amps)":"110 mA","Height - Seated (Max)":"0.110\\\" (2.80mm)","Operating Temperature":"-40°C ~ 105°C","Supplier Device Package":"1812 (4532 Metric)","Frequency - Self Resonant":"4.5MHz","Current - Saturation (Isat)":"-","Inductance Frequency - Test":"1 MHz"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.2818","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/d0d6b1d39c76e30b3c05600906460c39.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What compliance documentation does Murata provide for LQH43NN221J03L?","answer":"The evidence does not list specific compliance certifications such as RoHS, REACH, or UL for this part number. Standard Murata documentation for the LQH43 series typically includes a datasheet with environmental compliance statements."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/murata-electronics/LQH43NN221J03L","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/murata-electronics/LQH43NN221J03L 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}}