{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LQH43CN1R8M33L","brand":"Murata Electronics","brandSlug":"murata-electronics","productSlug":"LQH43CN1R8M33L","canonicalUrl":"https://icboms.com/murata-electronics/LQH43CN1R8M33L","factsUrl":"https://icboms.com/api/mcp/products/LQH43CN1R8M33L","rawCanonicalId":null},"summary":{"shortDescription":"Murata Electronics LQH43 series, Drum Core Wirewound Inductor, 1.8 µH, ±20%, 2.3 A, 55 mOhm DCR, 70 MHz SRF, 1812 (4532 Metric), Unshielded.","salesMarkdown":"## What the 2.3 A rating means for your rail The LQH43CN1R8M33L is a Murata drum-core wirewound inductor in the LQH43 series, rated 1.8 µH at 2.3 A with a maximum DC resistance of 55 mOhm. That 2.3 A is the saturation current — the point where inductance starts to roll off. ## Unshielded construction — where it fits and where it doesn't This is an unshielded inductor. The ferrite drum core emits a fringe field that can couple into nearby traces or a second inductor on a dense layout. It works well when the inductor sits at least one package width (4.5 mm) from sensitive analog nodes or when the board has a ground plane under the component to contain the field. For noise-sensitive RF or precision ADC rails, a shielded variant in the same LQH43 family would contain the flux — but the trade-off is a lower saturation current at the same inductance. ## Package and rework reality The 1812 (4532 Metric) footprint is a standard two-terminal chip — no hidden thermal pad, no orientation ambiguity. Reflow profile follows the standard lead-free ramp; the ferrite core doesn't absorb moisture, so no bake-out is needed before rework. Pin 1 is marked by a dot on the top face — confirm polarity if the board uses a specific winding start; otherwise the part is symmetric.","metaTitle":"Murata LQH43CN1R8M33L Drum Core Inductor, 1.8 µH, 2.3 A","metaDescription":"Murata LQH43CN1R8M33L wirewound drum core inductor, 1.8 µH, 2.3 A, 55 mOhm DCR, 1812 package, -40 to 85°C. 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) Cut Tape (CT)","Ratings":"-","Q @ Freq":"-","Shielding":"Unshielded","Tolerance":"±20%","Inductance":"1.8 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":"LQH43CN","DC Resistance (DCR)":"55mOhm Max","Current Rating (Amps)":"2.3 A","Height - Seated (Max)":"0.110\\\" (2.80mm)","Operating Temperature":"-40°C ~ 85°C","Supplier Device Package":"1812 (4532 Metric)","Frequency - Self Resonant":"70MHz","Current - Saturation (Isat)":"-","Inductance Frequency - Test":"1 MHz"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.4300","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/e4ffd95d57b880d736712d74c6ca4549.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the self-resonant frequency of this inductor?","answer":"The self-resonant frequency (SRF) is 70 MHz. Above this frequency the inductor behaves capacitively; for a DC-DC converter switching at 1-2 MHz, the SRF is well clear of the switching harmonics."},{"question":"How do I get current pricing and availability for LQH43CN1R8M33L?","answer":"Pricing and stock levels are confirmed at quote time. Submit an RFQ through the storefront for current lead time and quantity pricing."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/murata-electronics/LQH43CN1R8M33L","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/murata-electronics/LQH43CN1R8M33L 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}}