{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LQH43NN102J03L","brand":"Murata Electronics","brandSlug":"murata-electronics","productSlug":"LQH43NN102J03L","canonicalUrl":"https://icboms.com/murata-electronics/LQH43NN102J03L","factsUrl":"https://icboms.com/api/mcp/products/LQH43NN102J03L","rawCanonicalId":null},"summary":{"shortDescription":"Murata Electronics LQH43 series, Drum Core Wirewound Inductor, 1 mH, ±5%, 50 mA, Unshielded, 1812 (4532 Metric) Surface Mount, Tape & Reel.","salesMarkdown":"## 1 mH inductance, 50 mA current rating — BOM-fit parameters The Murata LQH43NN102J03L is a drum core, wirewound inductor in the LQH43 series, offering 1 mH inductance with ±5% tolerance. The 50 mA current rating sets the DC bias limit — exceeding it drives the core into saturation and collapses the inductance. The 25 Ohm max DCR means at full rated current the resistive loss is 62.5 mW, a factor in thermal budgeting for dense SMD layouts. ## 1812 SMD package and unshielded construction The unshielded construction means the magnetic field radiates — adjacent traces or components on the same layer should be kept clear to avoid coupling. Ferrite core material supports the 1 mH value in this footprint.","metaTitle":"Murata LQH43NN102J03L Inductor, 1 mH, 50 mA, 1812","metaDescription":"Murata LQH43NN102J03L drum core wirewound inductor, 1 mH ±5%, 50 mA, 25 Ohm DCR, 1812 SMD. Active production, available to order. Request a quote.","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 @ 252kHz","Shielding":"Unshielded","Tolerance":"±5%","Inductance":"1 mH","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":"LQH43NN","DC Resistance (DCR)":"25Ohm Max","Current Rating (Amps)":"50 mA","Height - Seated (Max)":"0.110\\\" (2.80mm)","Operating Temperature":"-40°C ~ 105°C","Supplier Device Package":"1812 (4532 Metric)","Frequency - Self Resonant":"2MHz","Current - Saturation (Isat)":"-","Inductance Frequency - Test":"1 kHz"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.5500","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/d0d6b1d39c76e30b3c05600906460c39.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LQH43NN102J03L/alternatives.json"},"ai":{"faq":[{"question":"What is the self-resonant frequency of the LQH43NN102J03L?","answer":"The self-resonant frequency is 2 MHz. Above this frequency the component behaves capacitively rather than inductively, so it is best suited for filtering and energy storage applications below 2 MHz."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/murata-electronics/LQH43NN102J03L","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/murata-electronics/LQH43NN102J03L 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}}