{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LBC2518T681KV","brand":"Taiyo Yuden","brandSlug":"taiyo-yuden","productSlug":"LBC2518T681KV","canonicalUrl":"https://icboms.com/taiyo-yuden/LBC2518T681KV","factsUrl":"https://icboms.com/api/mcp/products/LBC2518T681KV","rawCanonicalId":null},"summary":{"shortDescription":"Taiyo Yuden LB, C Type wirewound inductor, LBC2518T681KV, 680 µH, ±10%, 45 mA, 36.4 Ohm DCR, unshielded, 1007 (2518 Metric) package, Tape & Reel.","salesMarkdown":"## Active production — 680 µH wirewound for filtering and energy storage The Taiyo Yuden LBC2518T681KV is an active-production wirewound inductor in the LB, C Type series, rated 680 µH ±10% with a 45 mA current rating. The 36.4 Ohm max DC resistance is the dominant loss term at full load — at 45 mA the I²R loss is about 73 mW, which the 1007 (2518 Metric) surface-mount package dissipates without significant temperature rise in still air. The 3 MHz self-resonant frequency means this inductor maintains its inductive impedance up to about 3 MHz. Above that frequency the parasitic capacitance between windings dominates and the part behaves like a capacitor — a common trap when using a 680 µH part in a 2 MHz+ switching converter output filter. ## Unshielded construction and layout considerations This is an unshielded wirewound inductor. The magnetic field radiates from the core, so adjacent traces carrying sensitive analog signals or high-impedance nodes should be kept at least one part-width away. For a 2.50 mm x 1.80 mm footprint, a 3 mm keep-out zone around the body is a safe starting rule. The 1007 (2518 Metric) package has a seated height of 2.00 mm max. The 0.098\" x 0.071\" footprint fits standard pick-and-place nozzles; the part is compatible with reflow soldering profiles typical for lead-free assemblies. Inductance is tested at 796 kHz per the datasheet. The ±10% tolerance is typical for power-grade wirewound inductors; for tuned circuits or precision filters, a tighter tolerance grade would be needed.","metaTitle":"Taiyo Yuden LBC2518T681KV 680 µH Wirewound Inductor, 45 mA","metaDescription":"Taiyo Yuden LBC2518T681KV, 680 µH ±10% wirewound inductor, 45 mA rated current, 36.4 Ohm DCR max, 1007 package. Active production, sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Inductors & Chokes"],"specifications":{"Mfr":"Taiyo Yuden","Type":"Wirewound","Series":"LB, C Type","Package":"Tape & Reel (TR)","Ratings":"-","Features":"-","Q @ Freq":"-","Shielding":"Unshielded","Tolerance":"±10%","Inductance":"680 µH","Mounting Type":"Surface Mount","Package / Case":"1007 (2518 Metric)","Product Status":"Active","Material - Core":"-","lifecycle_stage":"unknown","Size / Dimension":"0.098\\\" L x 0.071\\\" W (2.50mm x 1.80mm)","DC Resistance (DCR)":"36.4Ohm Max","Current Rating (Amps)":"45 mA","Height - Seated (Max)":"0.079\\\" (2.00mm)","Operating Temperature":"-40°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":"$0.1260","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/6821f4f9bdf83d4b7d6600ea4042e985.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the DC resistance and why does it matter for this 680 µH inductor?","answer":"The maximum DC resistance is 36.4 Ohms. At the rated 45 mA current, this produces a voltage drop of about 1.64 V across the inductor and 73 mW of heat."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/taiyo-yuden/LBC2518T681KV","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/taiyo-yuden/LBC2518T681KV 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}}