{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LQH31CN1R0M03L","brand":"Murata Electronics","brandSlug":"murata-electronics","productSlug":"LQH31CN1R0M03L","canonicalUrl":"https://icboms.com/murata-electronics/LQH31CN1R0M03L","factsUrl":"https://icboms.com/api/mcp/products/LQH31CN1R0M03L","rawCanonicalId":null},"summary":{"shortDescription":"Murata Electronics LQH31 series, Drum Core Wirewound Inductor, 1 µH, ±20%, 510 mA, Unshielded, 1206 (3216 Metric), Surface Mount.","salesMarkdown":"## 1 µH, 510 mA — the load-line and frequency ceiling The Murata LQH31CN1R0M03L is a 1 µH unshielded wirewound inductor in the LQH31 series, built on a ferrite drum core and wound for a 510 mA continuous current rating. The 364 mOhm max DCR sets a hard I²R loss floor — at 510 mA the copper loss is about 95 mW, which the 1206 package must dissipate without exceeding the 85°C ambient ceiling. With a self-resonant frequency of 100 MHz, this inductor is usable well into the VHF band — the inductive impedance dominates below SRF, making it suitable for DC-DC converter output filters and RF bias-T circuits where the operating frequency stays under 50 MHz. ## Last Buy — the procurement window is closing Murata has placed the LQH31CN1R0M03L on Last Buy status — the manufacturer is no longer accepting new orders for ongoing production, so remaining inventory is the final available stock. ## Unshielded construction and 1206 footprint — layout implications The unshielded ferrite core means magnetic flux couples into nearby traces — keep sensitive analog or high-impedance nodes at least 2–3 mm from the inductor body, and avoid routing a ground plane directly underneath that would act as a shorted turn.","metaTitle":"Murata LQH31CN1R0M03L 1 µH Unshielded Wirewound Inductor","metaDescription":"Murata LQH31CN1R0M03L drum core wirewound inductor, 1 µH ±20%, 510 mA, 364 mOhm DCR, 1206 SMD. Last Buy status — sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Last Buy","categoryPath":["Inductors & Chokes"],"specifications":{"Mfr":"Murata Electronics","Type":"Drum Core, Wirewound","Series":"LQH31","Package":"Tape & Reel (TR); Cut Tape (CT)","Ratings":"-","Q @ Freq":"-","Shielding":"Unshielded","Tolerance":"±20%","Inductance":"1 µH","Mounting Type":"Surface Mount","Package / Case":"1206 (3216 Metric)","Product Status":"Last Time Buy","Material - Core":"Ferrite","lifecycle_stage":"unknown","Size / Dimension":"0.126\\\" L x 0.063\\\" W (3.20mm x 1.60mm)","Base Product Number":"LQH31CN","DC Resistance (DCR)":"364mOhm Max","Current Rating (Amps)":"510 mA","Height - Seated (Max)":"0.079\\\" (2.00mm)","Operating Temperature":"-40°C~85°C","Supplier Device Package":"1206","Frequency - Self Resonant":"100MHz","Current - Saturation (Isat)":"-","Inductance Frequency - Test":"1 MHz"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.7100","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/464d3ab2ad0094ea68db0784070895fc.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest alternative to LQH31CN1R0M03L?","answer":"Murata has not published an official successor or pin-compatible cross-reference for this order code. A replacement inductor must be qualified against the 1 µH inductance, 510 mA current rating, 364 mOhm max DCR, and the 1206 footprint — any parametric substitute should be validated in-circuit for saturation behaviour and thermal rise."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/murata-electronics/LQH31CN1R0M03L","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/murata-electronics/LQH31CN1R0M03L when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-20T14:34:45.345Z","lastPublished":"2026-07-20T14:34:45.345Z","indexable":true}}