{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LQH43MN331J03L","brand":"Murata Electronics","brandSlug":"murata-electronics","productSlug":"LQH43MN331J03L","canonicalUrl":"https://icboms.com/murata-electronics/LQH43MN331J03L","factsUrl":"https://icboms.com/api/mcp/products/LQH43MN331J03L","rawCanonicalId":null},"summary":{"shortDescription":"Murata Electronics LQH43 series drum core wirewound inductor, 330 µH, ±5%, 95 mA, 8.2 Ohm DCR, unshielded, 1812 (4532 Metric) SMD.","salesMarkdown":"## Active production — 330 µH wirewound in 1812 footprint The LQH43MN331J03L is an active-production drum core wirewound inductor from Murata's LQH43 series, rated 330 µH ±5% with a 95 mA continuous current limit. The 8.2 Ohm maximum DCR sets the conduction loss — at 95 mA the I²R loss is about 74 mW, which is within the self-heating budget for the 1812 ferrite core body. ## Q factor and self-resonant frequency — where it works Q is 40 at 796 kHz, and the self-resonant frequency is 3.6 MHz — the inductor behaves as a pure inductive element well below 3.6 MHz; above that the parasitic capacitance dominates and the impedance rolls off. The inductance is tested at 1 MHz, which is within the usable band where the Q is still high enough for filtering and DC-DC output ripple attenuation. ## Surface-mount 1812 — standard footprint for rework and layout Unshielded construction means the magnetic field extends beyond the body — keep a 1:1 clearance to adjacent traces or sensitive components to avoid coupling.","metaTitle":"Murata LQH43MN331J03L 330 µH Inductor, 95 mA, 1812","metaDescription":"Murata LQH43MN331J03L drum core wirewound inductor, 330 µH ±5%, 95 mA rated current, 8.2 Ohm DCR, 1812 SMD. 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":"-","Q @ Freq":"40 @ 796kHz","Shielding":"Unshielded","Tolerance":"±5%","Inductance":"330 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":"LQH43MN","DC Resistance (DCR)":"8.2Ohm Max","Current Rating (Amps)":"95 mA","Height - Seated (Max)":"0.110\\\" (2.80mm)","Operating Temperature":"-40°C ~ 85°C","Supplier Device Package":"1812","Frequency - Self Resonant":"3.6MHz","Current - Saturation (Isat)":"-","Inductance Frequency - Test":"1 MHz"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.4500","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/d1493e4ce66984c31e9b5c6bbb04d9e5.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/murata-electronics/LQH43MN331J03L","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/murata-electronics/LQH43MN331J03L 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}}