{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LQH43MN101J03L","brand":"Murata Electronics","brandSlug":"murata-electronics","productSlug":"LQH43MN101J03L","canonicalUrl":"https://icboms.com/murata-electronics/LQH43MN101J03L","factsUrl":"https://icboms.com/api/mcp/products/LQH43MN101J03L","rawCanonicalId":null},"summary":{"shortDescription":"Murata Electronics LQH43 series drum core wirewound inductor, 100 µH, ±5% tolerance, 160 mA rated current, unshielded, 1812 (4532 Metric) SMD package.","salesMarkdown":"## What this 100 µH wirewound does on the board The Murata LQH43MN101J03L is a drum-core wirewound inductor in the LQH43 series, rated 100 µH at 1 MHz test frequency with ±5% tolerance. ## Unshielded construction and the self-resonant ceiling This is an unshielded inductor, meaning the magnetic field couples into nearby traces and components — keep a clearance gap from sensitive analog or RF paths on the layout. The self-resonant frequency is 6.8 MHz; above that the inductor behaves capacitively, so it is a fit for DC-DC converters and filtering circuits switching below 2-3 MHz where the impedance stays inductive. ## Q factor and DCR — the loss trade-off Q is 40 at 796 kHz, which is typical for a ferrite-core wirewound in this inductance range — the loss is dominated by the winding resistance, not the core. The 2.5 Ohm max DCR means the DC power loss at 160 mA is 64 mW; for a power rail filter the efficiency hit is small, but for a high-Q resonant tank the series resistance limits the loaded Q.","metaTitle":"Murata LQH43MN101J03L 100 µH Inductor, 160 mA, 1812","metaDescription":"Murata LQH43MN101J03L drum core wirewound inductor, 100 µH ±5%, 160 mA rated current, 2.5 Ohm DCR, 1812 SMD. Active production, quoted 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":"100 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)":"2.5Ohm Max","Current Rating (Amps)":"160 mA","Height - Seated (Max)":"0.110\\\" (2.80mm)","Operating Temperature":"-40°C ~ 85°C","Supplier Device Package":"1812","Frequency - Self Resonant":"6.8MHz","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":[{"question":"Is LQH43MN101J03L shielded or unshielded?","answer":"This is an unshielded drum-core inductor. The open magnetic field means you should allow clearance from nearby sensitive traces or components, especially in RF or analog sections of the board."},{"question":"What is the self-resonant frequency of this inductor?","answer":"The self-resonant frequency is 6.8 MHz. Above this frequency the inductor behaves capacitively, so it is suited for switching circuits and filters operating below about 2-3 MHz where the impedance remains inductive."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/murata-electronics/LQH43MN101J03L","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/murata-electronics/LQH43MN101J03L 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}}