{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LQH43NH6R8J03L","brand":"Murata Electronics","brandSlug":"murata-electronics","productSlug":"LQH43NH6R8J03L","canonicalUrl":"https://icboms.com/murata-electronics/LQH43NH6R8J03L","factsUrl":"https://icboms.com/api/mcp/products/LQH43NH6R8J03L","rawCanonicalId":null},"summary":{"shortDescription":"Murata Electronics LQH43 series drum core wirewound inductor, 6.8 µH, ±5%, 530 mA, 216 mOhm DCR, 1812 (4532 Metric) SMD, AEC-Q200.","salesMarkdown":"## Inductance and DC resistance for power filtering The Murata LQH43NH6R8J03L is a 6.8 µH drum core wirewound inductor in the LQH43 series, built for surface-mount power and signal filtering. The 216 mOhm max DCR sets the I²R loss budget — at 530 mA continuous, the self-heating from winding resistance stays under 60 mW, which is negligible in most board-level thermal profiles. ## Self-resonant frequency and Q factor The self-resonant frequency is 31 MHz, which is the ceiling for effective inductive behaviour — above that the parasitic capacitance dominates and the component behaves capacitively. For a buck converter switching at 2 MHz, the 31 MHz SRF gives over a decade of margin before the inductor loses its impedance. Q factor is 30 at 1 MHz, typical for a ferrite-core wirewound in this inductance range. The Q value matters for tuned circuits and resonant converters where the inductor's loss angle affects efficiency and bandwidth. The unshielded construction means the magnetic field extends beyond the core — keep adjacent traces and copper pours at least one package width away to avoid eddy-current losses and unintended coupling. Surface-mount termination on a ferrite core; the reflow profile should follow the standard lead-free solder curve with a peak temperature of 260°C.","metaTitle":"Murata LQH43NH6R8J03L 6.8µH Inductor, 530mA, AEC-Q200","metaDescription":"Murata LQH43NH6R8J03L drum core wirewound inductor, 6.8 µH, 530 mA, 216 mOhm DCR, 1812 SMD, AEC-Q200. 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) Cut Tape (CT)","Ratings":"AEC-Q200","Features":"-","Q @ Freq":"30 @ 1MHz","Shielding":"Unshielded","Tolerance":"±5%","Inductance":"6.8 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)":"216mOhm Max","Current Rating (Amps)":"530 mA","Height - Seated (Max)":"0.110\\\" (2.80mm)","Operating Temperature":"-40°C ~ 125°C","Supplier Device Package":"1812","Frequency - Self Resonant":"31MHz","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 inductance and current rating of LQH43NH6R8J03L?","answer":"Inductance is 6.8 µH at 1 MHz test frequency, ±5% tolerance. The continuous current rating is 530 mA with a maximum DC resistance of 216 mOhm. Derate current above 85°C ambient per the standard ferrite-core derating curve."},{"question":"What compliance documentation does Murata provide for this inductor?","answer":"The part carries AEC-Q200 automotive qualification. Murata typically provides RoHS and REACH compliance declarations per their standard documentation package. No UL or IEC certification is listed in the product record."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/murata-electronics/LQH43NH6R8J03L","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/murata-electronics/LQH43NH6R8J03L 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}}