{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LBC2518T4R7M","brand":"Taiyo Yuden","brandSlug":"taiyo-yuden","productSlug":"LBC2518T4R7M","canonicalUrl":"https://icboms.com/taiyo-yuden/LBC2518T4R7M","factsUrl":"https://icboms.com/api/mcp/products/LBC2518T4R7M","rawCanonicalId":null},"summary":{"shortDescription":"Taiyo Yuden LB, C Type drum-core wirewound inductor, unshielded, 4.7 µH ±20%, 510 mA, 200 mOhm DCR, 1007 (2518 Metric) surface-mount package.","salesMarkdown":"## DC bias current and the real-world thermal limit The LBC2518T4R7M is a drum-core wirewound inductor from Taiyo Yuden's LB, C Type series, rated for 4.7 µH ±20% at 510 mA continuous DC. The 200 mOhm DCR means the I²R loss at full rated current is about 52 mW — the part self-heats, but the ferrite core material keeps the inductance stable up to the saturation current, which is typically 20-30% above the rated current for this construction. The 41 MHz self-resonant frequency tells you the inductor looks inductive well into the low-VHF band, so it works as a DC-DC output filter or a power-supply decoupling element in switching regulators switching at a few hundred kHz to a few MHz. ## Package footprint and board-level fit The unshielded construction means the magnetic field radiates; keep sensitive traces or high-impedance nodes at least a few mm away on the same layer.","metaTitle":"Taiyo Yuden LBC2518T4R7M 4.7 µH Unshielded Wirewound","metaDescription":"Taiyo Yuden LBC2518T4R7M drum-core wirewound inductor, 4.7 µH ±20%, 510 mA, 200 mOhm DCR, 1007 package. Active production, available to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Inductors & Chokes"],"specifications":{"Mfr":"Taiyo Yuden","Type":"Drum Core, Wirewound","Series":"LB, C Type","Package":"Tape & Reel (TR); Cut Tape (CT)","Ratings":"-","Q @ Freq":"-","Shielding":"Unshielded","Tolerance":"±20%","Inductance":"4.7 µH","Mounting Type":"Surface Mount","Package / Case":"1007 (2518 Metric)","Product Status":"Active","Material - Core":"Ferrite","lifecycle_stage":"unknown","Size / Dimension":"0.098\\\" L x 0.071\\\" W (2.50mm x 1.80mm)","DC Resistance (DCR)":"200mOhm","Current Rating (Amps)":"510 mA","Height - Seated (Max)":"0.079\\\" (2.00mm)","Operating Temperature":"-40°C~105°C","Supplier Device Package":"1007 (2518 Metric)","Frequency - Self Resonant":"41MHz","Current - Saturation (Isat)":"-","Inductance Frequency - Test":"7.96 MHz"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.1700","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/cd664633863fa4b45c7e3f0f2d162dd2.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the LBC2518T4R7M's self-resonant frequency and why does it matter?","answer":"The self-resonant frequency is 41 MHz. Above this frequency the inductor's parasitic capacitance dominates and the component behaves capacitively, so the inductor is only effective as an inductive element below about 40 MHz. For a switching regulator operating at 500 kHz, this is well within the inductive region."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/taiyo-yuden/LBC2518T4R7M","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/taiyo-yuden/LBC2518T4R7M 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}}