{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LQH43NH1R0M03L","brand":"Murata Electronics","brandSlug":"murata-electronics","productSlug":"LQH43NH1R0M03L","canonicalUrl":"https://icboms.com/murata-electronics/LQH43NH1R0M03L","factsUrl":"https://icboms.com/api/mcp/products/LQH43NH1R0M03L","rawCanonicalId":null},"summary":{"shortDescription":"Murata Electronics LQH43 series drum core wirewound inductor, LQH43NH1R0M03L, 1 µH, ±20%, 1.3 A, 39.6 mOhm DCR, 1812 (4532 Metric) surface mount, unshielded, AEC-Q200 rated.","salesMarkdown":"## 1 µH power inductor for automotive and industrial DC-DC The Murata LQH43NH1R0M03L is a 1 µH drum core wirewound inductor in the LQH43 series, rated for 1.3 A continuous current with a maximum DCR of 39.6 mOhm. The unshielded ferrite core keeps the self-resonant frequency at 120 MHz, so it filters switching noise well above the 1 MHz test frequency used for the inductance measurement. ## DC resistance and current ceiling for BOM fit At 1.3 A the 39.6 mOhm DCR produces a 67 mW I²R loss — negligible in a 1 W converter but worth accounting for in a tight thermal budget on a densely populated 1812 pad. The ±20 % tolerance on 1 µH means the actual inductance can range from 0.8 µH to 1.2 µH; a buck converter with a fixed compensation network may need a tighter-tolerance part if the loop stability margin is thin.","metaTitle":"LQH43NH1R0M03L Murata Inductor, 1 µH, 1.3 A, 1812","metaDescription":"Murata LQH43NH1R0M03L drum core wirewound inductor, 1 µH ±20%, 1.3 A, 39.6 mOhm DCR, AEC-Q200, 1812 package. 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":"AEC-Q200","Features":"-","Q @ Freq":"20 @ 1MHz","Shielding":"Unshielded","Tolerance":"±20%","Inductance":"1 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":"LQH43NH","DC Resistance (DCR)":"39.6mOhm Max","Current Rating (Amps)":"1.3 A","Height - Seated (Max)":"0.110\\\" (2.80mm)","Operating Temperature":"-40°C ~ 125°C","Supplier Device Package":"1812","Frequency - Self Resonant":"120MHz","Current - Saturation (Isat)":"-","Inductance Frequency - Test":"1 MHz"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.6100","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/b8fe98626664ecf0068858b1162f6220.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/murata-electronics/LQH43NH1R0M03L","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/murata-electronics/LQH43NH1R0M03L 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}}