{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LQH43PB2R2M26L","brand":"Murata Electronics","brandSlug":"murata-electronics","productSlug":"LQH43PB2R2M26L","canonicalUrl":"https://icboms.com/murata-electronics/LQH43PB2R2M26L","factsUrl":"https://icboms.com/api/mcp/products/LQH43PB2R2M26L","rawCanonicalId":null},"summary":{"shortDescription":"Murata Electronics LQH43 series, Drum Core Wirewound Inductor, Shielded, 2.2 µH, ±20%, 1.12 A, 50.4 mOhm DCR, 1812 (4532 Metric) SMD.","salesMarkdown":"## 2.2 µH power filter inductor with a 2.3 A saturation ceiling The Murata LQH43PB2R2M26L is a 2.2 µH shielded wirewound inductor in the LQH43 series, built on a ferrite drum core. Its 1.12 A continuous current rating and 50.4 mOhm max DCR define the DC loss budget in a buck regulator output filter, while the 2.3 A saturation current (Isat) marks the hard ceiling where inductance collapses — stay below this under transient load to keep the ripple current under control. The 45 MHz self-resonant frequency (SRF) means the inductor looks inductive well above the 1–3 MHz switching frequencies common in POL converters; above SRF the impedance turns capacitive and the filter stops working. The ferrite core material maintains its permeability across this range; the DCR shift with temperature follows the copper winding's 0.39%/°C coefficient, so budget the hot resistance when sizing the inductor for a 105°C ambient. ## 1812 SMD footprint and board-fit note Package is 1812 (4532 metric), 4.50 x 3.20 mm land pattern with a 2.80 mm seated height. Shielded construction contains the flux within the core, reducing radiated EMI into adjacent traces or a nearby RF front-end. Surface-mount on standard FR-4 with a 1.6 oz copper pour under the pads handles the 1.12 A continuous current without exceeding a 40°C temperature rise, provided the PCB copper area matches the inductor's thermal pad.","metaTitle":"Murata LQH43PB2R2M26L Shielded Power Inductor, 2.2 µH","metaDescription":"Murata LQH43PB2R2M26L 2.2 µH shielded wirewound inductor, 1.12 A rated, 50.4 mOhm DCR, 1812 SMD. Active production, available 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":"2.2 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)":"50.4mOhm Max","Current Rating (Amps)":"1.12 A","Height - Seated (Max)":"0.110\\\" (2.80mm)","Operating Temperature":"-40°C ~ 125°C","Supplier Device Package":"1812 (4532 Metric)","Frequency - Self Resonant":"45MHz","Current - Saturation (Isat)":"2.3A","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 closest pin-compatible alternative to LQH43PB2R2M26L?","answer":"No official cross-reference or second-source is recorded for this exact order code. The LQH43 series includes other inductance values in the same 1812 footprint; a functionally equivalent alternative would need the same 2.2 µH, ≥1.12 A rated current, ≤50.4 mOhm DCR, and shielded construction — confirm the BOM position before substituting."},{"question":"Where can I buy LQH43PB2R2M26L and check stock?","answer":"Sourced to order against the BOM through independent and authorized distribution."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/murata-electronics/LQH43PB2R2M26L","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/murata-electronics/LQH43PB2R2M26L 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}}