{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LQH43NZ221K03L","brand":"Murata Electronics","brandSlug":"murata-electronics","productSlug":"LQH43NZ221K03L","canonicalUrl":"https://icboms.com/murata-electronics/LQH43NZ221K03L","factsUrl":"https://icboms.com/api/mcp/products/LQH43NZ221K03L","rawCanonicalId":null},"summary":{"shortDescription":"Murata Electronics LQH43 series, Drum Core Wirewound Inductor, 220 µH, ±10%, 110 mA, 5.4 Ohm DCR, Unshielded, 1812 (4532 Metric), AEC-Q200.","salesMarkdown":"## 220 µH wirewound for automotive and industrial filtering The Murata LQH43NZ221K03L is a 220 µH unshielded drum-core wirewound inductor in the 1812 (4532 metric) surface-mount package. It is part of the LQH43 series, qualified to AEC-Q200 for automotive-grade reliability. Rated for 110 mA continuous current with a maximum DC resistance of 5.4 Ohm, this part suits power supply filtering, DC-DC converter output chokes, and noise suppression circuits where the load current stays under the rating. ## Parametric profile and board-fit The unshielded construction means magnetic flux radiates from the core — keep sensitive traces or low-impedance loops clear of the component body to avoid coupling. Self-resonant frequency is 4.5 MHz, placing the usable inductance band well below that point. The Q factor is 40 at 796 MHz, indicating moderate AC losses at VHF — this is a power-grade choke, not a high-Q tank inductor. The ferrite core material maintains inductance stability across this range, though DCR rises with temperature per the copper winding's positive coefficient. No official successor or pin-compatible cross-reference is listed. The LQH43 series includes other inductance values and tolerances in the same 1812 footprint, but a direct drop-in substitute for 220 µH at 110 mA is this exact order code.","metaTitle":"Murata LQH43NZ221K03L 220 µH Inductor, 110 mA, 1812","metaDescription":"Murata LQH43NZ221K03L 220 µH unshielded wirewound inductor, 110 mA rated current, 5.4 Ohm DCR, AEC-Q200 qualified. Active production, sourced 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)","Ratings":"AEC-Q200","Features":"-","Q @ Freq":"40 @ 796MHz","Shielding":"Unshielded","Tolerance":"±10%","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":"LQH43NZ","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","Frequency - Self Resonant":"4.5MHz","Current - Saturation (Isat)":"-","Inductance Frequency - Test":"1 MHz"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.2920","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/bb0b74c8fddb8276f9173381ac23c293.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the inductance and current rating of LQH43NZ221K03L?","answer":"The inductance is 220 µH at ±10% tolerance, tested at 1 MHz. The continuous current rating is 110 mA, with a maximum DC resistance of 5.4 Ohm."},{"question":"Is LQH43NZ221K03L qualified for automotive applications?","answer":"Yes, it carries AEC-Q200 qualification, the passive-component stress-test standard for automotive-grade reliability."},{"question":"What package does LQH43NZ221K03L use?","answer":"It comes in the 1812 (4532 metric) surface-mount package, supplied on tape and reel."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/murata-electronics/LQH43NZ221K03L","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/murata-electronics/LQH43NZ221K03L 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}}