{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LQH31HNR29J03L","brand":"Murata Electronics","brandSlug":"murata-electronics","productSlug":"LQH31HNR29J03L","canonicalUrl":"https://icboms.com/murata-electronics/LQH31HNR29J03L","factsUrl":"https://icboms.com/api/mcp/products/LQH31HNR29J03L","rawCanonicalId":null},"summary":{"shortDescription":"Murata Electronics LQH31 series, Drum Core Wirewound Inductor, 290 nH, ±5%, 420 mA, 221 mOhm DCR, Unshielded, 1206 (3216 Metric) SMD.","salesMarkdown":"## 290 nH wirewound in 1206 — what the ratings mean for your filter The Murata LQH31HNR29J03L is a drum-core, wirewound ferrite inductor in the LQH31 series, wound on a ferrite core and left unshielded. The 290 nH value at 1 MHz test frequency, ±5% tolerance, targets RF and high-frequency decoupling where tight inductance accuracy matters. Self-resonant frequency is 360 MHz, and Q is 60 at 100 MHz — this inductor maintains its inductive impedance well into the VHF band, making it suitable for impedance-matching networks, tank circuits, or supply-line filtering up to several hundred MHz before parasitic capacitance dominates. ## 1206 footprint and rework reality No exposed metal terminations on the top — pin 1 orientation is unambiguous from the part marking. For a BOM line that depends on this 290 nH ±5% value in a 1206 footprint, the Last Buy status means you either secure lifetime buy quantities now or plan a qualification cycle for a replacement. The unshielded drum-core construction is common across many vendors, but the specific inductance tolerance and self-resonant frequency should be matched in any substitute.","metaTitle":"Murata LQH31HNR29J03L Drum Core Inductor, 290 nH, 420 mA","metaDescription":"Murata LQH31HNR29J03L wirewound ferrite inductor, 290 nH ±5%, 420 mA, 221 mOhm DCR, 1206 SMD. Last Buy status — sourced to order. Request 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":"60 @ 100MHz","Shielding":"Unshielded","Tolerance":"±5%","Inductance":"290 nH","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":"LQH31HN","DC Resistance (DCR)":"221mOhm Max","Current Rating (Amps)":"420 mA","Height - Seated (Max)":"0.079\\\" (2.00mm)","Operating Temperature":"-40°C~85°C","Supplier Device Package":"1206 (3216 Metric)","Frequency - Self Resonant":"360MHz","Current - Saturation (Isat)":"-","Inductance Frequency - Test":"1 MHz"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.9300","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 LQH31HNR29J03L?","answer":"Inductance is 290 nH at 1 MHz test frequency, ±5% tolerance. The continuous current rating is 420 mA, with a maximum DC resistance of 221 mOhm."},{"question":"What package does LQH31HNR29J03L use?","answer":"It is unshielded and uses a ferrite drum core."},{"question":"What is the self-resonant frequency of LQH31HNR29J03L?","answer":"The self-resonant frequency is 360 MHz, and the Q factor is 60 at 100 MHz. This makes it suitable for RF circuits up to several hundred MHz."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/murata-electronics/LQH31HNR29J03L","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/murata-electronics/LQH31HNR29J03L 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}}