{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LQH31MN4R7J03L","brand":"Murata Electronics","brandSlug":"murata-electronics","productSlug":"LQH31MN4R7J03L","canonicalUrl":"https://icboms.com/murata-electronics/LQH31MN4R7J03L","factsUrl":"https://icboms.com/api/mcp/products/LQH31MN4R7J03L","rawCanonicalId":null},"summary":{"shortDescription":"Murata Electronics LQH31 series drum core wirewound inductor, 4.7 µH, ±5%, 120 mA, 2.21 Ω DCR, unshielded, 1206 (3216 Metric) package, Tape & Reel.","salesMarkdown":"## What the 4.7 µH rating means for your filter or DC-DC circuit The LQH31MN4R7J03L is a Murata drum core wirewound inductor from the LQH31 series, offering 4.7 µH inductance with ±5% tolerance. The 120 mA current rating and 2.21 Ω max DCR define the practical load: at 120 mA the copper loss is about 32 mW, acceptable for low-power signal filtering or DC-DC output smoothing in a 1206 footprint. The self-resonant frequency of 31 MHz and Q factor of 35 at 8 MHz indicate useful performance well into the HF band — suitable for RF bias-T or impedance matching up to tens of MHz, though the unshielded construction means magnetic coupling to nearby traces must be considered in layout. ## Last-buy lifecycle — plan your procurement now Murata has placed the LQH31MN4R7J03L on last-buy status. This means the manufacturer will accept final orders within a defined window; after that, supply shifts to independent surplus channels. If this inductor is on your BOM, secure your lifetime buy or a multi-year buffer before the order cutoff closes. The LQH31 series itself may have active variants with similar inductance and current ratings, but pin-compatibility and footprint must be verified against your specific layout — the 1206 case size is standard, but a drop-in replacement is not guaranteed. The ferrite core and wirewound construction are surface-mount compatible with standard reflow profiles. Operating temperature range is -40°C to +85°C, covering industrial and most commercial environments. The unshielded design means the inductor radiates magnetic flux — keep sensitive traces or low-impedance loops at least a few millimeters away in layout.","metaTitle":"Murata LQH31MN4R7J03L 4.7 µH Inductor, 120 mA, 1206","metaDescription":"Murata LQH31MN4R7J03L drum core wirewound inductor, 4.7 µH ±5%, 120 mA, 2.21 Ω DCR, 1206 package. Last buy lifecycle. Sourced to order against 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":"35 @ 8MHz","Shielding":"Unshielded","Tolerance":"±5%","Inductance":"4.7 µH","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":"LQH31MN","DC Resistance (DCR)":"2.21Ohm Max","Current Rating (Amps)":"120 mA","Height - Seated (Max)":"0.079\\\" (2.00mm)","Operating Temperature":"-40°C ~ 85°C","Supplier Device Package":"1206","Frequency - Self Resonant":"31MHz","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 inductance and current rating of LQH31MN4R7J03L?","answer":"Inductance is 4.7 µH ±5%, tested at 1 MHz. DC current rating is 120 mA, with a maximum DC resistance of 2.21 Ω."},{"question":"What package does LQH31MN4R7J03L come in?","answer":"Surface-mount 1206 (3216 Metric) package, supplied on Tape & Reel or Cut Tape."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/murata-electronics/LQH31MN4R7J03L","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/murata-electronics/LQH31MN4R7J03L 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}}