{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LQH2MCN2R2M52L","brand":"Murata Electronics","brandSlug":"murata-electronics","productSlug":"LQH2MCN2R2M52L","canonicalUrl":"https://icboms.com/murata-electronics/LQH2MCN2R2M52L","factsUrl":"https://icboms.com/api/mcp/products/LQH2MCN2R2M52L","rawCanonicalId":null},"summary":{"shortDescription":"Murata LQH2 series LQH2MCN2R2M52L, Drum Core Wirewound Inductor, 2.2 µH, ±20%, 500 mA, 546 mOhm DCR, 125 MHz SRF, Unshielded, 0806 (2016 Metric) Surface Mount.","salesMarkdown":"## 2.2 µH wirewound — the DC-DC output filter workhorse The LQH2MCN2R2M52L is a 2.2 µH drum-core wirewound inductor from Murata's LQH2 series, built for surface-mount power filtering in the 0806 (2016 Metric) footprint. The 2.00 mm × 1.60 mm body sits 0.95 mm above the board, fitting into tight-height power rails. Rated for 500 mA continuous DC current with a maximum DCR of 546 mOhm, the I²R loss at full load is about 136 mW — well within the 85°C ambient ceiling for a ferrite-core part. The unshielded construction means the magnetic field extends beyond the package; keep sensitive traces or other magnetics at least one body width away to avoid parasitic coupling. The self-resonant frequency of 125 MHz sets the upper bound for effective filtering — below that frequency the inductor behaves inductively; above it the parasitic capacitance dominates and the impedance drops. For a typical buck converter switching at 1–4 MHz, this part has ample margin. ## DCR, current, and the thermal trade-off With 500 mA rated current and 546 mOhm DCR, the DC conduction loss hits 136 mW at full rated current. The ferrite core saturates gradually — the ±20% tolerance on the 2.2 µH value already accounts for the inductance drop under DC bias at the rated current. For a 12 V rail dropping to 3.3 V at 300 mA, the ripple current is typically 30–40% of the DC load — the 500 mA rating leaves enough headroom to avoid saturation on the ripple peaks. Inductance is tested at 1 MHz, a standard frequency for power inductor characterization. The actual in-circuit inductance at the switching frequency will be close to the 2.2 µH nominal value, provided the DC bias stays below the saturation threshold. ## Active production — no end-of-life watch needed For BOM risk management, the 0806 footprint and 2.2 µH / 500 mA rating are common across multiple Murata LQH2 variants and competitor series — a second-source qualification should be straightforward if volume hedging is required.","metaTitle":"Murata LQH2MCN2R2M52L 2.2 µH Drum Core Inductor, 500 mA","metaDescription":"Murata LQH2MCN2R2M52L 2.2 µH ±20% wirewound inductor, 500 mA rating, 546 mOhm DCR, 125 MHz SRF, 0806 package. Active production, sourced per RFQ.","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":"LQH2","Package":"Tape & Reel (TR) Cut Tape (CT)","Ratings":"-","Q @ Freq":"-","Shielding":"Unshielded","Tolerance":"±20%","Inductance":"2.2 µH","Mounting Type":"Surface Mount","Package / Case":"0806 (2016 Metric)","Product Status":"Active","Material - Core":"Ferrite","lifecycle_stage":"unknown","Size / Dimension":"0.079\\\" L x 0.063\\\" W (2.00mm x 1.60mm)","Base Product Number":"LQH2MCN","DC Resistance (DCR)":"546mOhm Max","Current Rating (Amps)":"500 mA","Height - Seated (Max)":"0.037\\\" (0.95mm)","Operating Temperature":"-40°C ~ 85°C","Supplier Device Package":"0806 (2016 Metric)","Frequency - Self Resonant":"125MHz","Current - Saturation (Isat)":"-","Inductance Frequency - Test":"1 MHz"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.3400","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/04840f721a9455e1372b3de366723599.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What does the 546 mOhm DCR mean for my circuit?","answer":"The 546 mOhm maximum DC resistance causes an I²R loss of about 136 mW at the 500 mA rated current. This heat must be dissipated into the PCB copper and ambient air within the 85°C operating limit. For lower-current designs the loss scales quadratically — at 250 mA it drops to 34 mW."},{"question":"Can I use this inductor in a 2 MHz buck converter?","answer":"Yes. The 125 MHz self-resonant frequency is two orders of magnitude above 2 MHz, so the inductor behaves inductively at the switching frequency."},{"question":"What is the closest pin-compatible alternative to LQH2MCN2R2M52L?","answer":"Within the same LQH2 series, Murata offers other 2.2 µH variants with different current ratings, DCR values, or shielding options in the same 0806 footprint. The unshielded LQH2MCN2R2M52L can be replaced by a shielded LQH2PBN2R2M or similar if EMI coupling to adjacent traces becomes a concern — the footprint is identical."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/murata-electronics/LQH2MCN2R2M52L","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/murata-electronics/LQH2MCN2R2M52L 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}}