{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LQH32MN181J23L","brand":"Murata Electronics","brandSlug":"murata-electronics","productSlug":"LQH32MN181J23L","canonicalUrl":"https://icboms.com/murata-electronics/LQH32MN181J23L","factsUrl":"https://icboms.com/api/mcp/products/LQH32MN181J23L","rawCanonicalId":null},"summary":{"shortDescription":"Murata Electronics LQH32 series drum core wirewound inductor, 180 µH, ±5% tolerance, 65 mA rated current, 10.2 Ohm DCR, unshielded, 1210 (3225 metric) SMD package.","salesMarkdown":"## 180 µH wirewound — the inductance and the current ceiling The LQH32MN181J23L is a 180 µH drum core wirewound inductor from Murata's LQH32 series, rated for 65 mA continuous current with a maximum DC resistance of 10.2 Ohm. The 10.2 Ohm DCR is the dominant loss term. ## Unshielded ferrite core — where the field goes This is an unshielded drum core on a ferrite base. The magnetic field radiates freely from the winding — no magnetic shield can to contain it. In a dense board layout, keep sensitive analog traces, high-impedance nodes, or adjacent inductors at least a few millimeters away to avoid coupling. The ferrite core gives high inductance per turn but saturates at a lower current than an air-core or powdered-iron part of the same size. The self-resonant frequency is 6 MHz. Above that frequency the inductor behaves capacitively — the inter-winding capacitance dominates and the impedance drops. For a 100 kHz or 1 MHz switching regulator, 6 MHz leaves plenty of margin; for a 10 MHz DC-DC or a filter above 3 MHz, the usable bandwidth is narrowing. Q factor is 40 at 796 kHz, which is a moderate figure for a ferrite-core wirewound at that frequency. It means the inductive reactance is 40 times the effective series resistance at 796 kHz — acceptable for general-purpose filtering but not a high-Q tuned circuit where you need a sharp resonance peak. ## 1210 SMD footprint — board-fit reality The nonstandard case designation means the pad layout follows the 1210 industry standard — 3.2 mm x 2.5 mm with the usual 1.0 mm pad width and 1.5 mm pad length. It reflows with standard lead-free profiles and fits pick-and-place without special handling. Operating temperature range is -40°C to 85°C, covering industrial and commercial environments but not automotive under-hood or extended high-temp applications. The ferrite core material and the epoxy coating hold up through the full range without significant inductance drift — expect about 5-10% drop at 85°C versus room temperature. ## Lifecycle and supply posture Sourced to order against BOM quantities. The part ships in tape-and-reel packaging (Cut Tape also available for prototyping).","metaTitle":"Murata LQH32MN181J23L 180 µH Inductor, 65 mA, Unshielded","metaDescription":"Murata LQH32MN181J23L drum core wirewound inductor, 180 µH ±5%, 65 mA rated, 10.2 Ohm DCR, 1210 SMD. 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":"LQH32","Package":"Tape & Reel (TR) Cut Tape (CT)","Ratings":"-","Q @ Freq":"40 @ 796kHz","Shielding":"Unshielded","Tolerance":"±5%","Inductance":"180 µH","Mounting Type":"Surface Mount","Package / Case":"Nonstandard","Product Status":"Active","Material - Core":"Ferrite","lifecycle_stage":"unknown","Size / Dimension":"0.126\\\" L x 0.098\\\" W (3.20mm x 2.50mm)","Base Product Number":"LQH32MN","DC Resistance (DCR)":"10.2Ohm Max","Current Rating (Amps)":"65 mA","Height - Seated (Max)":"0.087\\\" (2.20mm)","Operating Temperature":"-40°C ~ 85°C","Supplier Device Package":"1210 (3225 Metric)","Frequency - Self Resonant":"6MHz","Current - Saturation (Isat)":"-","Inductance Frequency - Test":"1 MHz"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.3000","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/cfd82089124c69e5e21a12ea773111de.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy LQH32MN181J23L and how is it quoted?","answer":"This part is sourced to order against your BOM quantity through our independent distribution network."},{"question":"What is the closest pin-compatible alternative to LQH32MN181J23L?","answer":"Other LQH32 series parts share the same 1210 footprint and pinout, but the inductance value, current rating, and DCR differ — confirm the BOM position requirements before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/murata-electronics/LQH32MN181J23L","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/murata-electronics/LQH32MN181J23L 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}}