{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LQH31MN1R2K03L","brand":"Murata Electronics","brandSlug":"murata-electronics","productSlug":"LQH31MN1R2K03L","canonicalUrl":"https://icboms.com/murata-electronics/LQH31MN1R2K03L","factsUrl":"https://icboms.com/api/mcp/products/LQH31MN1R2K03L","rawCanonicalId":null},"summary":{"shortDescription":"Murata Electronics LQH31 series, Drum Core Wirewound Inductor, 1.2 µH, ±10%, 165 mA, 900mOhm DCR, Unshielded, 1206 (3216 Metric), Tape & Reel.","salesMarkdown":"## 1.2 µH unshielded drum core for RF bias and filtering The Murata LQH31MN1R2K03L is a 1.2 µH unshielded wirewound inductor in the LQH31 series, built on a ferrite drum core. The wirewound construction delivers a Q of 35 at 10 MHz, with a self-resonant frequency of 90 MHz — the useful band for impedance matching and bias-T applications sits well below SRF, where the component behaves inductively. The 900 mOhm DCR means a 24.5 mV drop at full rated current — budget this into the supply rail if the inductor sits in a power path. ## 1206 footprint and unshielded layout constraints The unshielded construction radiates magnetic flux — adjacent traces carrying sensitive analog signals or high-impedance nodes should maintain at least one body width (3.2 mm) of clearance to avoid coupled noise. The ±10% tolerance on the 1.2 µH nominal value is typical for drum-core wirewound inductors; for resonant circuits or filters where inductance accuracy matters, measure the actual value at the operating frequency and temperature.","metaTitle":"Murata LQH31MN1R2K03L 1.2 µH Unshielded Wirewound Inductor","metaDescription":"Murata LQH31MN1R2K03L drum core wirewound inductor, 1.2 µH ±10%, 165 mA, 900 mOhm DCR, 1206 package. Active production. Quoted 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)","Ratings":"-","Q @ Freq":"35 @ 10MHz","Shielding":"Unshielded","Tolerance":"±10%","Inductance":"1.2 µH","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":"LQH31MN","DC Resistance (DCR)":"900mOhm","Current Rating (Amps)":"165 mA","Height - Seated (Max)":"0.079\\\" (2.00mm)","Operating Temperature":"-40°C ~ 85°C","Supplier Device Package":"1206 (3216 Metric)","Frequency - Self Resonant":"90MHz","Current - Saturation (Isat)":"-","Inductance Frequency - Test":"1 MHz"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.3128","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/23793266b202ae546e5047be20f0e556.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the self-resonant frequency and Q of this inductor?","answer":"The self-resonant frequency is 90 MHz, and the Q factor is 35 at 10 MHz. The useful inductive region is well below SRF; above 90 MHz the impedance becomes capacitive."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/murata-electronics/LQH31MN1R2K03L","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/murata-electronics/LQH31MN1R2K03L 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}}