{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TAJD687K004RNJV","brand":"KYOCERA AVX","brandSlug":"kyocera-avx","productSlug":"TAJD687K004RNJV","canonicalUrl":"https://icboms.com/kyocera-avx/TAJD687K004RNJV","factsUrl":"https://icboms.com/api/mcp/products/TAJD687K004RNJV","rawCanonicalId":null},"summary":{"shortDescription":"KYOCERA AVX TAJ series, Molded tantalum capacitor, 680 µF ±10%, 4 V rated, 500 mOhm ESR @ 100 kHz, 2000 hours at 125°C, SMD 2917 (7343 Metric) package, Tape & Reel.","salesMarkdown":"## High-temperature hold-up for low-voltage rails The TAJD687K004RNJV: This TAJ series molded tantalum capacitor delivers 680 µF at 4 V in a standard 2917 (7343 Metric) SMD package — a common choice for bulk decoupling on 3.3 V or 1.8 V rails where the ripple current and voltage margin need a low-ESR electrolytic alternative. ## ESR and ripple — what the 500 mOhm spec means With 500 mOhm ESR measured at 100 kHz, the self-heating from ripple current stays manageable — for a 1 A ripple component, the I²R loss is 0.5 W, which the 2917 package can dissipate with reasonable board copper. The ±10% tolerance on 680 µF means the actual capacitance at 25°C falls between 612 µF and 748 µF — enough margin for a bulk cap in a switching regulator output filter without oversizing the feedback compensation. ## Active production — ordering and fit The molded case carries no polarity marking ambiguity — tantalum capacitors are polarized, and the device is marked with a stripe on the positive end. Confirm orientation against the board silkscreen before reflow.","metaTitle":"TAJD687K004RNJV — KYOCERA AVX TAJ Series 680 µF 4 V Molded","metaDescription":"Active KYOCERA AVX TAJ series molded tantalum capacitor, 680 µF ±10%, 4 V rated, 500 mOhm ESR, 2000 hrs at 125°C. SMD 2917 package. Quoted to order.","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":"680 µF","Failure Rate":"-","Lead Spacing":"-","Mounting Type":"Surface Mount","Package / Case":"2917 (7343 Metric)","Product Status":"Active","Voltage - Rated":"4 V","lifecycle_stage":"unknown","Lifetime @ Temp.":"2000 Hrs @ 125°C","Size / Dimension":"0.287\\\" L x 0.169\\\" W (7.30mm x 4.30mm)","Height - Seated (Max)":"0.122\\\" (3.10mm)","Operating Temperature":"-55°C~125°C","Manufacturer Size Code":"D","ESR (Equivalent Series Resistance)":"500mOhm @ 100kHz"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.7195","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/ce09bb895bbc5407352e9a690f57411c.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TAJD687K004RNJV/alternatives.json"},"ai":{"faq":[{"question":"Is TAJD687K004RNJV RoHS compliant?","answer":"The evidence does not list a RoHS compliance status. Verify the specific date-code or contact KYOCERA AVX for the current RoHS declaration."},{"question":"What is the lifetime of TAJD687K004RNJV at 125°C?","answer":"Rated for 2000 hours at 125°C, which is the standard endurance test condition for this TAJ series molded tantalum."},{"question":"What is the polarity of TAJD687K004RNJV?","answer":"It is a polarized tantalum capacitor. The positive terminal is marked with a stripe on the molded case body."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/kyocera-avx/TAJD687K004RNJV","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/kyocera-avx/TAJD687K004RNJV 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}}