{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TAJB475K020KNJ","brand":"KYOCERA AVX","brandSlug":"kyocera-avx","productSlug":"TAJB475K020KNJ","canonicalUrl":"https://icboms.com/kyocera-avx/TAJB475K020KNJ","factsUrl":"https://icboms.com/api/mcp/products/TAJB475K020KNJ","rawCanonicalId":null},"summary":{"shortDescription":"KYOCERA AVX TAJ series, molded tantalum, 4.7 µF ±10 %, 20 V rated, 3 Ohm ESR at 100 kHz, -55 to 125 °C, 2000 hours at 125 °C, case code B (1411 / 3528 metric).","salesMarkdown":"The TAJB475K020KNJ is a 4.7 µF molded tantalum capacitor rated at 20 V with ±10 % tolerance. The 3 Ohm ESR at 100 kHz is the spec that determines how much ripple current the part can handle before self-heating exceeds the 125 °C limit — at 100 kHz, a 3 Ohm ESR limits ripple current to roughly 200 mA RMS for a 125 mW self-heating budget. For a 12 V rail decoupling application, the 20 V rating provides 33 % derating, which is the standard practice for tantalum capacitors to avoid surge failures. ## Temperature range and life rating The 2000-hour life rating at 125 °C is the accelerated test condition; every 10 °C drop in operating temperature roughly doubles the expected life, so at 85 °C the useful life extends well beyond 10,000 hours. ## Active production — sourced per RFQ","metaTitle":"TAJB475K020KNJ – KYOCERA AVX TAJ Series 4.7 µF 20 V Molded","metaDescription":"TAJB475K020KNJ: 4.7 µF ±10 %, 20 V, 3 Ohm ESR @ 100 kHz, -55 to 125 °C, 2000 h @ 125 °C. Active production. Sourced per RFQ.","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)","Ratings":"-","Features":"General Purpose","Tolerance":"±10%","Capacitance":"4.7 µF","Failure Rate":"-","Lead Spacing":"-","Mounting Type":"Surface Mount","Package / Case":"1411 (3528 Metric)","Product Status":"Active","Voltage - Rated":"20 V","lifecycle_stage":"unknown","Lifetime @ Temp.":"2000 Hrs @ 125°C","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)":"3Ohm @ 100kHz"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.2147","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/ce09bb895bbc5407352e9a690f57411c.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TAJB475K020KNJ/alternatives.json"},"ai":{"faq":[{"question":"What is the ESR of TAJB475K020KNJ?","answer":"The ESR is 3 Ohm at 100 kHz. This is the maximum series resistance at the test frequency — it sets the ripple current capability and the self-heating under AC load."},{"question":"What is the difference between TAJB475K020KNJ and TAJB475K020RNJ?","answer":"Both are 4.7 µF, 20 V, case B tantalum capacitors from the TAJ series. The suffix 'KNJ' vs 'RNJ' typically indicates a different packaging or termination finish option — confirm the specific termination plating and reel quantity with the datasheet before substituting on the same BOM line."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/kyocera-avx/TAJB475K020KNJ","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/kyocera-avx/TAJB475K020KNJ 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}}