{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LQH43NN1R5M03L","brand":"Murata Electronics","brandSlug":"murata-electronics","productSlug":"LQH43NN1R5M03L","canonicalUrl":"https://icboms.com/murata-electronics/LQH43NN1R5M03L","factsUrl":"https://icboms.com/api/mcp/products/LQH43NN1R5M03L","rawCanonicalId":null},"summary":{"shortDescription":"Murata Electronics LQH43 series drum core wirewound inductor, unshielded, 1.5 µH, ±20% tolerance, 500 mA rated current, 300 mOhm DCR max, 1812 (4532 Metric) surface-mount package.","salesMarkdown":"## Drum core wirewound, 1.5 µH, 500 mA — what the ratings mean for a BOM line The LQH43NN1R5M03L is a Murata drum-core wirewound inductor in the LQH43 series, unshielded, with a ferrite core and a 1.5 µH inductance at ±20% tolerance — the loose tolerance is typical for power-grade inductors where the DC bias current dominates the effective inductance drop. Rated for 500 mA continuous current with a maximum DC resistance of 300 mOhm — at full rated current the self-heating from I²R losses is about 75 mW, which is well within the 105°C operating limit for a standard 1812 footprint on a two-layer board. Self-resonant frequency is 85 MHz, so this part is usable as a power-supply filter inductor well into the tens of MHz before the parasitic capacitance turns it capacitive — fine for DC-DC converter output stages switching at 1–2 MHz.","metaTitle":"Murata LQH43NN1R5M03L Drum Core Inductor, 1.5 µH, 500 mA","metaDescription":"Murata LQH43NN1R5M03L drum core wirewound inductor, 1.5 µH ±20%, 500 mA rated current, 300 mOhm DCR max, 85 MHz SRF, -40°C to 105°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":"20 @ 1MHz","Shielding":"Unshielded","Tolerance":"±20%","Inductance":"1.5 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)":"300mOhm Max","Current Rating (Amps)":"500 mA","Height - Seated (Max)":"0.110\\\" (2.80mm)","Operating Temperature":"-40°C ~ 105°C","Supplier Device Package":"1812 (4532 Metric)","Frequency - Self Resonant":"85MHz","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 is LQH43NN1R5M03L's listed type and series?","answer":"The type is Drum Core, Wirewound and the series is LQH43, a standard power inductor family from Murata in the 1812 (4532 Metric) surface-mount package."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/murata-electronics/LQH43NN1R5M03L","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/murata-electronics/LQH43NN1R5M03L 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}}