{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LQH31HNR21K03L","brand":"Murata Electronics","brandSlug":"murata-electronics","productSlug":"LQH31HNR21K03L","canonicalUrl":"https://icboms.com/murata-electronics/LQH31HNR21K03L","factsUrl":"https://icboms.com/api/mcp/products/LQH31HNR21K03L","rawCanonicalId":null},"summary":{"shortDescription":"Murata Electronics LQH31 series, Drum Core Wirewound Inductor, 215 nH, ±10%, 520 mA, 143 mOhm DCR, 1206 (3216 Metric), Unshielded, Ferrite Core.","salesMarkdown":"## 215 nH wirewound for RF and decoupling The Murata LQH31HNR21K03L is a drum-core wirewound inductor in the LQH31 series, packing 215 nH ±10% into a standard 1206 footprint. It handles 520 mA continuous with a DCR of 143 mΩ max — the resistance is low enough that self-heating stays under control at rated current, so no derating for most board-level decoupling or RF bias-tee duty. ## Unshielded, but the SRF is clean Self-resonant frequency hits 430 MHz, well above the 100 MHz where Q is measured at 60 — this means the inductor behaves like an inductor up through VHF and into low UHF, making it a fit for RF matching networks and filter stages in that band. The unshielded construction means flux couples into nearby traces; keep a ground plane under the part and give it at least a part-width gap to adjacent inductors. The ferrite core material is standard for this inductance range — no saturation concerns at the 520 mA ceiling.","metaTitle":"Murata LQH31HNR21K03L Drum Core Inductor, 215 nH, 520 mA","metaDescription":"Murata LQH31HNR21K03L unshielded wirewound inductor, 215 nH ±10%, 520 mA, 143 mΩ DCR, 1206 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":"LQH31","Package":"Tape & Reel (TR); Cut Tape (CT)","Ratings":"-","Q @ Freq":"60 @ 100MHz","Shielding":"Unshielded","Tolerance":"±10%","Inductance":"215 nH","Mounting Type":"Surface Mount","Package / Case":"1206 (3216 Metric)","Product Status":"Active","Material - Core":"Ferrite","lifecycle_stage":"unknown","Size / Dimension":"0.126\\\" L x 0.063\\\" W (3.20mm x 1.60mm)","Base Product Number":"LQH31HN","DC Resistance (DCR)":"143mOhm Max","Current Rating (Amps)":"520 mA","Height - Seated (Max)":"0.079\\\" (2.00mm)","Operating Temperature":"-40°C~85°C","Supplier Device Package":"1206","Frequency - Self Resonant":"430MHz","Current - Saturation (Isat)":"-","Inductance Frequency - Test":"1 MHz"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.3757","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/e25d4379cfb80e731ed5285aac1d8b5e.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the inductance and current rating of LQH31HNR21K03L?","answer":"Inductance is 215 nH ±10%, rated current is 520 mA, with a max DCR of 143 mΩ. Self-resonant frequency is 430 MHz."},{"question":"What package does LQH31HNR21K03L come in?","answer":"Available in tape-and-reel or cut tape."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/murata-electronics/LQH31HNR21K03L","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/murata-electronics/LQH31HNR21K03L 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}}