{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TAJB685M025Y","brand":"KYOCERA AVX","brandSlug":"kyocera-avx","productSlug":"TAJB685M025Y","canonicalUrl":"https://icboms.com/kyocera-avx/TAJB685M025Y","factsUrl":"https://icboms.com/api/mcp/products/TAJB685M025Y","rawCanonicalId":null},"summary":{"shortDescription":"KYOCERA AVX TAJ series, molded tantalum capacitor, 6.8 µF ±20%, 25 V rated, 2.8 Ohm ESR, B case 1411 (3528 Metric), -55°C to 125°C, Tape & Reel","salesMarkdown":"## 6.8 µF at 25 V — bulk decoupling for 12 V rails The TAJB685M025Y is a molded tantalum capacitor from the TAJ series, rated 6.8 µF at 25 V with ±20% tolerance. That capacitance and voltage combination fits 12 V rail bulk decoupling in industrial controls, telecom line cards, and power-supply outputs where a 25 V rating provides the standard 80 % derating margin on a 12 V bus. ## 2.8 Ohm ESR — the ripple-current ceiling With an ESR of 2.8 Ohm, the self-heating from AC ripple current is the limiting factor — at 100 kHz, the I²R loss raises the internal temperature above ambient. For a 100 mA ripple component, the dissipation is 28 mW; in still air inside a sealed enclosure that heat accumulates and reduces the capacitor's effective lifetime. Budget the ripple current against the derating curve in the TAJ series datasheet. ## B case 1411 — board-fit dimensions The B case code (1411 / 3528 Metric) measures 3.50 mm x 2.80 mm with a seated height of 2.10 mm max. The 0.50 mm pitch between the anode and cathode pads is standard for this case size — the footprint matches the EIA 3528-21 land pattern. Confirm the pad geometry against your PCB layout; the 2.10 mm height may conflict with a 2.0 mm clearance under a mezzanine board.","metaTitle":"TAJB685M025Y Tantalum Capacitor – 6.8 µF 25 V Molded","metaDescription":"KYOCERA AVX TAJB685M025Y molded tantalum cap, 6.8 µF ±20%, 25 V, 2.8 Ohm ESR, B case 1411 (3528). Active – quoted to order. RFQ for lead time and pricing.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Specialty Capacitors"],"specifications":{"Mfr":"KYOCERA AVX","Type":"Molded","Series":"TAJ","Package":"Tape & Reel (TR)","Features":"General Purpose","Tolerance":"±20%","Capacitance":"6.8 µF","Failure Rate":"-","Lead Spacing":"-","Mounting Type":"Surface Mount","Package / Case":"1411 (3528 Metric), 1210","Product Status":"Active","Voltage - Rated":"25 V","lifecycle_stage":"unknown","Lifetime @ Temp.":"-","Size / Dimension":"0.138\\\" L x 0.110\\\" W (3.50mm x 2.80mm)","Height - Seated (Max)":"0.083\\\" (2.10mm)","Operating Temperature":"-55°C ~ 125°C","Manufacturer Size Code":"B","ESR (Equivalent Series Resistance)":"2.8Ohm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.7500","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/ce09bb895bbc5407352e9a690f57411c.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TAJB685M025Y/alternatives.json"},"ai":{"faq":[{"question":"Is TAJB685M025Y RoHS compliant?","answer":"The evidence does not carry an explicit RoHS compliance statement for this part number. Check the manufacturer's packaging label or the TAJ series datasheet for the RoHS marking — the 'Y' suffix in the order code often indicates a RoHS-compliant termination finish on AVX tantalum caps."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/kyocera-avx/TAJB685M025Y","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/kyocera-avx/TAJB685M025Y 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}}