{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LQH43NH271J03L","brand":"Murata Electronics","brandSlug":"murata-electronics","productSlug":"LQH43NH271J03L","canonicalUrl":"https://icboms.com/murata-electronics/LQH43NH271J03L","factsUrl":"https://icboms.com/api/mcp/products/LQH43NH271J03L","rawCanonicalId":null},"summary":{"shortDescription":"Murata Electronics LQH43 series, Drum Core Wirewound Inductor, 270 µH, ±5%, 90 mA, 6.6 Ohm DCR, Unshielded, 1812 (4532 Metric), AEC-Q200.","salesMarkdown":"## AEC-Q200 qualified wirewound inductor for automotive and industrial supply rails The Murata LQH43NH271J03L is a drum-core wirewound inductor in the LQH43 series, housed in an 1812 (4532 Metric) surface-mount package. It delivers 270 µH inductance with ±5% tolerance and a rated current of 90 mA. For an ECU or sensor module that must survive engine-bay or chassis-mounted thermal cycles, this is the qualification an OEM auditor will ask for by name. ## DC resistance and self-resonant frequency — the trade-off that governs the filter band The 6.6 Ohm maximum DC resistance sets the I²R loss floor: at 90 mA the winding dissipates roughly 54 mW. The self-resonant frequency is 4 MHz. Above that point the inductor behaves capacitively, so the effective filtering band for this 270 µH part sits below ~500 kHz in typical buck or EMI filter stages. The Q factor of 40 at 796 kHz confirms the core losses are well controlled in that range.","metaTitle":"Murata LQH43NH271J03L Drum Core Inductor, 270 µH, AEC-Q200","metaDescription":"Murata LQH43NH271J03L wirewound drum core inductor, 270 µH ±5%, 90 mA rated, 6.6 Ohm DCR, AEC-Q200 qualified, -40°C to 125°C. Active part, 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) Cut Tape (CT)","Ratings":"AEC-Q200","Features":"-","Q @ Freq":"40 @ 796kHz","Shielding":"Unshielded","Tolerance":"±5%","Inductance":"270 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":"LQH43NH","DC Resistance (DCR)":"6.6Ohm Max","Current Rating (Amps)":"90 mA","Height - Seated (Max)":"0.110\\\" (2.80mm)","Operating Temperature":"-40°C ~ 125°C","Supplier Device Package":"1812","Frequency - Self Resonant":"4MHz","Current - Saturation (Isat)":"-","Inductance Frequency - Test":"1 MHz"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.6100","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/b8fe98626664ecf0068858b1162f6220.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the AEC-Q200 grade of LQH43NH271J03L?","answer":"The part is AEC-Q200 qualified, which covers the full suite of automotive passive-component stress tests per the Automotive Electronics Council."},{"question":"What is the inductance and current rating of LQH43NH271J03L?","answer":"Inductance is 270 µH at 1 MHz test frequency with ±5% tolerance. Rated current is 90 mA. DC resistance is 6.6 Ohm maximum. Self-resonant frequency is 4 MHz. These values define the usable filter band and power handling."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/murata-electronics/LQH43NH271J03L","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/murata-electronics/LQH43NH271J03L 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}}