{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LQH31HN54NK03L","brand":"Murata Electronics","brandSlug":"murata-electronics","productSlug":"LQH31HN54NK03L","canonicalUrl":"https://icboms.com/murata-electronics/LQH31HN54NK03L","factsUrl":"https://icboms.com/api/mcp/products/LQH31HN54NK03L","rawCanonicalId":null},"summary":{"shortDescription":"Murata Electronics LQH31 series, Drum Core Wirewound Inductor, LQH31HN54NK03L, 54 nH, ±10%, 920 mA, 45.5 mOhm DCR, Unshielded, 1206 (3216 Metric), Tape & Reel.","salesMarkdown":"## 54 nH, 920 mA — parametric fit for RF decoupling The LQH31HN54NK03L: It delivers 54 nH ±10% with a self-resonant frequency of 800 MHz and a DC resistance of 45.5 mOhm max — the low DCR keeps conduction loss down at the 920 mA rated current, making it a fit for RF decoupling and bias-tee circuits where the inductor sits in the signal path. ## Unshielded construction and Q factor This part is unshielded, so the magnetic field radiates from the core — a consideration for board layout when the inductor is placed near sensitive analog or RF traces. The Q factor is 50 at 100 MHz, which indicates moderate selectivity for narrowband filtering; for a 54 nH value at that frequency, the inductive reactance is about 34 ohms, and the series resistance at 100 MHz (accounting for skin effect) will be higher than the DC DCR. The ferrite core material supports the 800 MHz self-resonant frequency — above that point the inductor behaves capacitively, so the useful bandwidth for impedance matching or filtering stops well before SRF. Operating temperature range is -40°C to 85°C, covering most indoor and automotive cabin environments. ## Last Buy — sourcing window is closing Murata has placed the LQH31HN54NK03L in Last Buy status — the manufacturer is winding down production. This means the part is still orderable through distribution but will not be available once the final buy window closes. No official successor part number is listed; the LQH31 series is the family, but a direct pin-compatible replacement from Murata has not been designated. For a BOM that already uses this inductor, now is the time to secure lifetime buy quantities or qualify an alternative. The 1206 footprint is common, and other wirewound 54 nH inductors from Murata or competitors (e.g., Coilcraft, TDK) may fit the pad layout, but the DCR and SRF must match the circuit's requirements — the 45.5 mOhm max and 800 MHz SRF are the constraints.","metaTitle":"Murata LQH31HN54NK03L 54 nH Inductor, 920 mA, Unshielded","metaDescription":"Murata LQH31HN54NK03L drum core wirewound inductor, 54 nH, 920 mA, 45.5 mOhm DCR, 1206 SMD. Last Buy status — sourced to order.","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":"50 @ 100MHz","Shielding":"Unshielded","Tolerance":"±10%","Inductance":"54 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)":"45.5mOhm Max","Current Rating (Amps)":"920 mA","Height - Seated (Max)":"0.079\\\" (2.00mm)","Operating Temperature":"-40°C~85°C","Supplier Device Package":"1206","Frequency - Self Resonant":"800MHz","Current - Saturation (Isat)":"-","Inductance Frequency - Test":"1 MHz"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.8800","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/e25d4379cfb80e731ed5285aac1d8b5e.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to LQH31HN54NK03L?","answer":"No official direct replacement has been designated by Murata. The 1206 footprint is standard, so other 54 nH ±10% wirewound inductors in the same package may be electrically compatible, but the DCR (45.5 mOhm max) and SRF (800 MHz) must be matched for the circuit to perform identically. Qualification testing is recommended before substitution."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/murata-electronics/LQH31HN54NK03L","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/murata-electronics/LQH31HN54NK03L 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}}