{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LQH43PB3R3M26L","brand":"Murata Electronics","brandSlug":"murata-electronics","productSlug":"LQH43PB3R3M26L","canonicalUrl":"https://icboms.com/murata-electronics/LQH43PB3R3M26L","factsUrl":"https://icboms.com/api/mcp/products/LQH43PB3R3M26L","rawCanonicalId":null},"summary":{"shortDescription":"Murata Electronics LQH43 series, Drum Core Wirewound Shielded Inductor, 3.3 µH, ±20%, 1 A, 62.4 mOhm DCR, 1812 (4532 Metric) SMD, -40°C to 125°C.","salesMarkdown":"## 3.3 µH Shielded Ferrite Drum Core — DC Bias and Thermal Headroom The LQH43PB3R3M26L is a shielded ferrite drum-core wirewound inductor from Murata's LQH43 series, in a 1812 (4532 Metric) surface-mount package. Its 3.3 µH ±20% inductance is specified at 1 MHz test frequency. Rated for 1 A continuous current with a maximum DCR of 62.4 mOhm. The saturation current (Isat) is 1.8 A, so the core holds its inductance well past the rated DC bias — the 1 A continuous rating is thermally limited by the DCR loss, not the core saturation knee. Self-resonant frequency is 40 MHz. Above that frequency the component behaves capacitively, so for a buck converter switching at 2 MHz or a Pi-filter at 10 MHz, the inductor stays inductive with margin. ## Active Production — No Lifecycle Risk for New Designs Murata lists the LQH43PB3R3M26L as Active. The 1812 footprint is a standard size shared across the LQH43 series.","metaTitle":"Murata LQH43PB3R3M26L 3.3 µH Shielded Inductor, 1 A","metaDescription":"Murata LQH43PB3R3M26L, 3.3 µH ±20%, 1 A, 62.4 mOhm DCR, shielded ferrite core, 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)","Ratings":"-","Q @ Freq":"-","Shielding":"Shielded","Tolerance":"±20%","Inductance":"3.3 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":"LQH43PB","DC Resistance (DCR)":"62.4mOhm Max","Current Rating (Amps)":"1 A","Height - Seated (Max)":"0.110\\\" (2.80mm)","Operating Temperature":"-40°C ~ 125°C","Supplier Device Package":"1812 (4532 Metric)","Frequency - Self Resonant":"40MHz","Current - Saturation (Isat)":"1.8A","Inductance Frequency - Test":"1 MHz"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.3150","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/aa37ec466e7678f87545fa5f8b803d57.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the self-resonant frequency and why does it matter?","answer":"The self-resonant frequency is 40 MHz. This is the frequency where the inductor's parasitic capacitance cancels the inductance; above this point the part stops behaving as an inductor. For power filtering or DC-DC conversion, keep the switching frequency well below 40 MHz — typically below 10 MHz for safe margin."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/murata-electronics/LQH43PB3R3M26L","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/murata-electronics/LQH43PB3R3M26L 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}}