{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LQH43MN102K03L","brand":"Murata Electronics","brandSlug":"murata-electronics","productSlug":"LQH43MN102K03L","canonicalUrl":"https://icboms.com/murata-electronics/LQH43MN102K03L","factsUrl":"https://icboms.com/api/mcp/products/LQH43MN102K03L","rawCanonicalId":null},"summary":{"shortDescription":"Murata Electronics LQH43 series, Drum Core Wirewound Inductor, 1 mH, ±10%, 50 mA, 25 Ohm DCR, Unshielded, 1812 (4532 Metric), Surface Mount.","salesMarkdown":"## 1 mH at 50 mA — what the ratings mean for the filter The LQH43MN102K03L is a 1 mH drum-core wirewound inductor in the LQH43 series from Murata, rated for 50 mA continuous current. 1 mH at this current is a value you reach for when you need a low-pass filter corner frequency in the low kHz range — think pi filters on supply lines or LC tanks in tuned circuits where the load current stays under 50 mA. The self-resonant frequency of 2 MHz tells you the inductor stops looking inductive above that point — keep your switching or signal frequency well below 2 MHz to stay in the inductive region. ## Footprint and board-fit note The unshielded construction means the magnetic field radiates — keep sensitive traces or other magnetics at least a body-width away to avoid coupling. Ferrite core material gives stable inductance over the temperature range but saturates abruptly if the peak current exceeds the rated 50 mA by much.","metaTitle":"Murata LQH43MN102K03L 1 mH Unshielded Inductor, 50 mA","metaDescription":"Murata LQH43MN102K03L drum core wirewound inductor, 1 mH ±10%, 50 mA rated current, 25 Ohm DCR, 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":"-","Q @ Freq":"40 @ 252kHz","Shielding":"Unshielded","Tolerance":"±10%","Inductance":"1 mH","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)":"25Ohm Max","Current Rating (Amps)":"50 mA","Height - Seated (Max)":"0.110\\\" (2.80mm)","Operating Temperature":"-40°C ~ 85°C","Supplier Device Package":"1812","Frequency - Self Resonant":"2MHz","Current - Saturation (Isat)":"-","Inductance Frequency - Test":"1 kHz"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.4300","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/d1493e4ce66984c31e9b5c6bbb04d9e5.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy LQH43MN102K03L and how do I get a price?","answer":"No stock-holding claim is made — availability is verified per inquiry."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/murata-electronics/LQH43MN102K03L","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/murata-electronics/LQH43MN102K03L 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}}