{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LQH31MN8R2K03L","brand":"Murata Electronics","brandSlug":"murata-electronics","productSlug":"LQH31MN8R2K03L","canonicalUrl":"https://icboms.com/murata-electronics/LQH31MN8R2K03L","factsUrl":"https://icboms.com/api/mcp/products/LQH31MN8R2K03L","rawCanonicalId":null},"summary":{"shortDescription":"Murata Electronics LQH31 series, Drum Core Wirewound Inductor, 8.2 µH, ±10%, 105 mA, 2.86 Ohm DCR, Unshielded, 1206 (3216 Metric) package, Tape & Reel.","salesMarkdown":"## 8.2 µH wirewound in a 1206 body The Murata LQH31MN8R2K03L is a drum-core wirewound inductor in the LQH31 series, rated 8.2 µH ±10% at 1 MHz test frequency. It carries a continuous current rating of 105 mA with a maximum DC resistance of 2.86 Ohm — the DCR sets the I²R heating floor, so at full rated current the self-heating is about 31 mW, negligible in most circuits. The unshielded construction means the magnetic field extends beyond the part body — keep sensitive traces or other magnetics at least a part-width away to avoid coupling. ## Frequency limits and Q factor Self-resonant frequency is 23 MHz; above that the inductor behaves capacitively and the effective inductance drops. The Q factor is 35 at 8 MHz — this is the ratio of stored energy to loss per cycle, so at frequencies near 8 MHz the component acts as a reasonably efficient filter element. Below 1 MHz the Q falls off; above 10 MHz the self-resonance starts to dominate. ## Footprint and rework The solder pads are large enough for hand-soldering or hot-air rework — the ferrite body handles the thermal shock of a preheat to 150°C without cracking, and the nickel barrier terminations wet well with leaded or lead-free solder. No polarity marking needed; orientation is irrelevant for a wirewound inductor.","metaTitle":"Murata LQH31MN8R2K03L 8.2 µH Inductor, 1206, 105 mA","metaDescription":"Murata LQH31MN8R2K03L drum-core wirewound inductor, 8.2 µH ±10%, 105 mA, 2.86 Ohm 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)","Ratings":"-","Q @ Freq":"35 @ 8MHz","Shielding":"Unshielded","Tolerance":"±10%","Inductance":"8.2 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)":"2.86Ohm Max","Current Rating (Amps)":"105 mA","Height - Seated (Max)":"0.079\\\" (2.00mm)","Operating Temperature":"-40°C ~ 85°C","Supplier Device Package":"1206","Frequency - Self Resonant":"23MHz","Current - Saturation (Isat)":"-","Inductance Frequency - Test":"1 MHz"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.3023","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/23793266b202ae546e5047be20f0e556.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the self-resonant frequency and why does it matter?","answer":"The self-resonant frequency is 23 MHz. Above this frequency the inductor behaves as a capacitor, so the effective inductance drops sharply. For filter or resonant applications, keep the operating frequency well below 23 MHz — typically under 10 MHz for reliable performance."},{"question":"What compliance documentation does Murata provide for this inductor?","answer":"The LQH31MN8R2K03L is RoHS-compliant. Murata typically provides REACH and conflict-minerals declarations on request through the supply chain. No UL or IEC certification is listed for this component class."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/murata-electronics/LQH31MN8R2K03L","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/murata-electronics/LQH31MN8R2K03L 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}}