{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LQH43MN330K03L","brand":"Murata Electronics","brandSlug":"murata-electronics","productSlug":"LQH43MN330K03L","canonicalUrl":"https://icboms.com/murata-electronics/LQH43MN330K03L","factsUrl":"https://icboms.com/api/mcp/products/LQH43MN330K03L","rawCanonicalId":null},"summary":{"shortDescription":"Murata Electronics LQH43 series, Drum Core Wirewound inductor, 33 µH, ±10%, 270 mA, 1.2 Ohm DCR, 1812 (4532 Metric), Unshielded, Ferrite Core.","salesMarkdown":"## 33 µH wirewound inductor for power and signal filtering The Murata LQH43MN330K03L is a drum core wirewound inductor from the LQH43 series, delivering 33 µH ±10% inductance in an 1812 (4532 Metric) surface-mount package. Rated for 270 mA continuous current with a maximum DC resistance of 1.2 Ohm, this part suits low-to-moderate current filtering and DC-DC converter output ripple suppression where the 33 µH value provides the needed impedance at switching frequencies. ## Frequency response and Q factor With a self-resonant frequency of 12 MHz and a Q factor of 35 measured at 1 MHz, the inductor maintains its inductive behavior well into the low-MHz range, making it effective for EMI filtering and tuned circuits in that band. The ferrite core material and unshielded construction mean the magnetic field radiates outside the component — allow clearance from adjacent traces and other inductors to avoid cross-coupling in dense PCB layouts.","metaTitle":"Murata LQH43MN330K03L 33 µH Unshielded Inductor, 270 mA","metaDescription":"Murata LQH43MN330K03L drum core wirewound inductor, 33 µH ±10%, 270 mA, 1.2 Ohm DCR, 1812 SMD. Active production. Request quote for pricing and availability.","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":"35 @ 1MHz","Shielding":"Unshielded","Tolerance":"±10%","Inductance":"33 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)":"1.2Ohm Max","Current Rating (Amps)":"270 mA","Height - Seated (Max)":"0.110\\\" (2.80mm)","Operating Temperature":"-40°C~85°C","Supplier Device Package":"1812","Frequency - Self Resonant":"12MHz","Current - Saturation (Isat)":"-","Inductance Frequency - Test":"1 MHz"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.4700","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/d1493e4ce66984c31e9b5c6bbb04d9e5.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the DC resistance and current rating of LQH43MN330K03L?","answer":"The DC resistance is 1.2 Ohm maximum, and the continuous current rating is 270 mA."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/murata-electronics/LQH43MN330K03L","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/murata-electronics/LQH43MN330K03L 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}}