{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LQH31MN220J03L","brand":"Murata Electronics","brandSlug":"murata-electronics","productSlug":"LQH31MN220J03L","canonicalUrl":"https://icboms.com/murata-electronics/LQH31MN220J03L","factsUrl":"https://icboms.com/api/mcp/products/LQH31MN220J03L","rawCanonicalId":null},"summary":{"shortDescription":"Murata Electronics LQH31 series, Drum Core Wirewound Inductor, 22 µH, ±5%, 85 mA, 4.03 Ω DCR, 1206 (3216 Metric), Unshielded, Ferrite Core.","salesMarkdown":"## Last Buy — what it means for your BOM Murata has marked the LQH31MN220J03L as Last Buy. For a replacement, the closest parametric match within the LQH31 family would need to be evaluated — same 22 µH inductance, ±5% tolerance, and 1206 footprint — but pin-compatibility is not guaranteed without a datasheet review. ## 22 µH, 85 mA — signal filtering fit The LQH31MN220J03L is a 22 µH drum core wirewound inductor rated for 85 mA continuous current. The 4.03 Ω maximum DCR means the DC power loss at full rated current is about 29 mW — acceptable for low-power signal conditioning or decoupling in RF and analog circuits, but not for high-efficiency power conversion. Self-resonant frequency is 14 MHz, and Q is 40 at 2.5 MHz. This makes the part suitable for filtering in the low-MHz range — for example, as a choke in a 2.4 GHz BLE front-end it would be well below resonance, but the 14 MHz SRF limits its use above about 5 MHz where the impedance becomes capacitive. The ferrite core material provides stable inductance over this range, though the unshielded construction means the field radiates — keep sensitive traces or adjacent inductors at least a few mm away to avoid coupling. ## 1206 footprint — board integration The tape-and-reel packaging supports automated pick-and-place; the cut-tape option is available for prototyping. The part is unshielded — the magnetic field extends beyond the body, so board layout should maintain clearance from other inductive components or sensitive analog traces. The wirewound construction gives a higher Q and lower DCR than a multilayer ferrite bead at this inductance, but the trade-off is larger physical size and radiated field.","metaTitle":"Murata LQH31MN220J03L 22 µH Wirewound Inductor, 85 mA","metaDescription":"Murata LQH31MN220J03L drum core wirewound inductor, 22 µH, 85 mA, 4.03 Ω DCR, 1206 package. Last Buy lifecycle — sourced to order against an 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":"40 @ 2.5MHz","Shielding":"Unshielded","Tolerance":"±5%","Inductance":"22 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)":"4.03Ohm Max","Current Rating (Amps)":"85 mA","Height - Seated (Max)":"0.079\\\" (2.00mm)","Operating Temperature":"-40°C ~ 85°C","Supplier Device Package":"1206","Frequency - Self Resonant":"14MHz","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":"Where can I buy LQH31MN220J03L?","answer":"The LQH31MN220J03L is in Last Buy status."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/murata-electronics/LQH31MN220J03L","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/murata-electronics/LQH31MN220J03L 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}}