{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LBC2518T681K","brand":"Taiyo Yuden","brandSlug":"taiyo-yuden","productSlug":"LBC2518T681K","canonicalUrl":"https://icboms.com/taiyo-yuden/LBC2518T681K","factsUrl":"https://icboms.com/api/mcp/products/LBC2518T681K","rawCanonicalId":null},"summary":{"shortDescription":"Taiyo Yuden LB, C Type wirewound inductor, LBC2518T681K, 680 µH, ±10%, 45 mA, 28 Ohm DCR, unshielded, 1007 (2518 Metric) SMD.","salesMarkdown":"## 680 µH wirewound in a 1007 footprint The Taiyo Yuden LBC2518T681K is a wirewound inductor from the LB, C Type series, delivering 680 µH ±10% in an unshielded 1007 (2518 Metric) surface-mount package. Rated for 45 mA DC with a DCR of 28 Ohm, it targets low-current filtering and decoupling roles where the 3 MHz self-resonant frequency keeps the inductive impedance dominant across the band. ## NRND — not for new designs Existing BOM lines can still be filled through independent distribution, but new board spins should look at active alternatives in the same footprint. The 1007 (2518) metric footprint is common across the LB series — a pin-to-pin compatible active variant with a similar inductance and current rating is the straightforward migration path. ## Design-in constraints Unshielded construction means the 680 µH coil radiates a stray field — keep sensitive traces or other magnetics at least one package width away to avoid coupling. The 28 Ohm DCR drops 1.26 V at the 45 mA rated current, so the available supply headroom must account for that IR drop plus the inductor's own temperature rise. Operating range from -25°C to 105°C covers most indoor and telecom environments but does not reach the -40°C floor needed for automotive or outdoor cold-climate gear.","metaTitle":"Taiyo Yuden LBC2518T681K 680µH Wirewound Inductor, NRND","metaDescription":"Taiyo Yuden LBC2518T681K wirewound inductor, 680 µH, 45 mA, 28 Ohm DCR, 1007 (2518) SMD. NRND — sourced to order against RFQ through independent distribution.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"NRND","categoryPath":["Inductors & Chokes"],"specifications":{"Mfr":"Taiyo Yuden","Type":"Wirewound","Series":"LB, C Type","Package":"Tape & Reel (TR) Cut Tape (CT)","Ratings":"-","Q @ Freq":"-","Shielding":"Unshielded","Tolerance":"±10%","Inductance":"680 µH","Mounting Type":"Surface Mount","Package / Case":"1007 (2518 Metric)","Product Status":"Not For New Designs","Material - Core":"-","lifecycle_stage":"unknown","Size / Dimension":"0.098\\\" L x 0.071\\\" W (2.50mm x 1.80mm)","DC Resistance (DCR)":"28Ohm","Current Rating (Amps)":"45 mA","Height - Seated (Max)":"0.079\\\" (2.00mm)","Operating Temperature":"-25°C ~ 105°C","Supplier Device Package":"1007 (2518 Metric)","Frequency - Self Resonant":"3MHz","Current - Saturation (Isat)":"-","Inductance Frequency - Test":"796 kHz"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.1500","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/307c8a154963aaa47cbae9941d7a1644.pdf","sourceUrl":null},"ai":{"faq":[{"question":"How can I get pricing and availability for LBC2518T681K?","answer":"Submit an RFQ through this listing. Pricing and current stock levels are confirmed at quote time through our independent sourcing channels — no real-time inventory figure is published here."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/taiyo-yuden/LBC2518T681K","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/taiyo-yuden/LBC2518T681K 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}}