{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LQH43MN680J03L","brand":"Murata Electronics","brandSlug":"murata-electronics","productSlug":"LQH43MN680J03L","canonicalUrl":"https://icboms.com/murata-electronics/LQH43MN680J03L","factsUrl":"https://icboms.com/api/mcp/products/LQH43MN680J03L","rawCanonicalId":null},"summary":{"shortDescription":"Murata Electronics LQH43 series, Drum Core Wirewound inductor, 68 µH, ±5%, 180 mA, 1.9 Ohm DCR, 1812 (4532 Metric), Surface Mount, Unshielded, Tape & Reel.","salesMarkdown":"## 68 µH drum core wirewound — what the ratings mean for your power rail The Murata LQH43MN680J03L is a 68 µH drum core wirewound inductor in the LQH43 series, built on a ferrite core and housed in an 1812 (4532 Metric) surface-mount package. Rated at 180 mA DC with a maximum DCR of 1.9 Ohm, this part suits low-current filtering and decoupling roles where the DC bias stays well under 200 mA — think supply rail ripple suppression or LC filter output stages drawing tens of milliamps. The 1.9 Ohm DCR means a 180 mA load drops roughly 340 mV across the winding and dissipates about 62 mW in copper loss — fine for most board-level filters, but worth checking against your thermal budget if the inductor sits near a hot regulator or in a confined enclosure. ## Unshielded construction and self-resonant frequency — layout gotchas This is an unshielded drum core design — the magnetic field extends beyond the package, so keep sensitive traces or adjacent inductors a few millimeters away to avoid coupling. The self-resonant frequency is 8.4 MHz, meaning the inductor behaves inductively well below that; above 8.4 MHz the impedance turns capacitive, so it is not a good choice for switching converters running above a couple of megahertz. The Q factor is 35 at 1 MHz — moderate for a wirewound of this size. For narrowband filtering near 1 MHz the insertion loss is acceptable, but for higher-Q tank circuits you would look at air-core or ferrite-tuned alternatives. ## Active production — sourcing posture for this BOM line No stock-holding claim — quoted per RFQ.","metaTitle":"Murata LQH43MN680J03L 68 µH Inductor, 180 mA, 1812","metaDescription":"Murata LQH43MN680J03L drum core wirewound inductor, 68 µH ±5%, 180 mA rated current, 1.9 Ohm DCR, 1812 SMD package. Active production, sourced per RFQ.","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":"-","Q @ Freq":"35 @ 1MHz","Shielding":"Unshielded","Tolerance":"±5%","Inductance":"68 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)":"1.9Ohm Max","Current Rating (Amps)":"180 mA","Height - Seated (Max)":"0.110\\\" (2.80mm)","Operating Temperature":"-40°C ~ 85°C","Supplier Device Package":"1812","Frequency - Self Resonant":"8.4MHz","Current - Saturation (Isat)":"-","Inductance Frequency - Test":"1 MHz"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.2299","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/d1493e4ce66984c31e9b5c6bbb04d9e5.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy LQH43MN680J03L and how is it quoted?","answer":"This part is sourced through authorized and independent distribution channels."},{"question":"What is the inductance tolerance and test frequency?","answer":"The inductance is 68 µH with ±5% tolerance, tested at 1 MHz."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/murata-electronics/LQH43MN680J03L","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/murata-electronics/LQH43MN680J03L 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}}