{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LQH32MN271K23L","brand":"Murata Electronics","brandSlug":"murata-electronics","productSlug":"LQH32MN271K23L","canonicalUrl":"https://icboms.com/murata-electronics/LQH32MN271K23L","factsUrl":"https://icboms.com/api/mcp/products/LQH32MN271K23L","rawCanonicalId":null},"summary":{"shortDescription":"Murata Electronics LQH32 series, Drum Core Wirewound Inductor, 270 µH, ±10%, 65 mA, 12.5 Ohm DCR, Unshielded, 1210 (3225 Metric) footprint, Surface Mount.","salesMarkdown":"## Inductance, current, and DC resistance — the three numbers that decide the fit The LQH32MN271K23L is a 270 µH unshielded wirewound inductor in Murata's LQH32 series, built on a ferrite drum core. The 65 mA current rating and 12.5 Ohm maximum DCR set the usable load range — at full rated current the self-heating from I²R losses is about 53 mW, well within the 85°C ambient ceiling for a 1210-sized part. The unshielded construction means the magnetic field extends beyond the component body — adjacent traces carrying sensitive analog signals should be kept at least one part-width away to avoid parasitic coupling. For power rail filtering or DC-DC converter output chokes where the radiated field is contained by the ground plane, this is rarely a concern. ## Q factor and self-resonant frequency — where the inductor stops being an inductor The Q factor is 40 minimum at 796 kHz — a moderate Q for a 270 µH wirewound, meaning the AC losses at that frequency are about 2.5 % of the reactance. Above the 5 MHz self-resonant frequency the impedance becomes capacitive; the part is usable as an inductor only well below that point, typically up to 2-3 MHz in practice. The inductance is tested at 1 MHz, which sits between the Q test frequency and the SRF — a common test point for inductors in this value range. The ±10 % tolerance covers process variation; for a tuned filter or resonant tank circuit, the actual value should be verified at the operating frequency. ## 1210 footprint and reflow profile considerations The ferrite core is brittle — board flex during depaneling or rework can crack the drum; a 0.5 mm keep-out around the body is recommended to avoid stress transfer from the solder fillet. Surface-mount reflow follows standard lead-free profiles (peak 260°C, 30 seconds above 255°C). The ferrite material does not absorb moisture, so no bake-out is required before reflow even after long storage.","metaTitle":"Murata LQH32MN271K23L 270 µH Unshielded Wirewound Inductor","metaDescription":"Murata LQH32MN271K23L wirewound inductor, 270 µH ±10%, 65 mA rating, 12.5 Ohm DCR, unshielded drum core, 1210 footprint, -40°C to +85°C.","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":"±10%","Inductance":"270 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)":"12.5Ohm 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":"5MHz","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":"What is the DC resistance and current rating of this inductor?","answer":"The maximum DC resistance is 12.5 Ohms, and the rated current is 65 mA. The self-heating at full rated current is approximately 53 mW, which is within the 85°C operating temperature limit."},{"question":"What package size is the LQH32MN271K23L?","answer":"The supplier device package is 1210 (3225 Metric)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/murata-electronics/LQH32MN271K23L","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/murata-electronics/LQH32MN271K23L 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}}