{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TAJY685K035RNJ","brand":"KYOCERA AVX","brandSlug":"kyocera-avx","productSlug":"TAJY685K035RNJ","canonicalUrl":"https://icboms.com/kyocera-avx/TAJY685K035RNJ","factsUrl":"https://icboms.com/api/mcp/products/TAJY685K035RNJ","rawCanonicalId":null},"summary":{"shortDescription":"KYOCERA AVX TAJ series, Type Molded, 6.8 µF ±10%, 35 V rated, 2917 (7343 Metric) surface-mount tantalum capacitor, 900 mOhm ESR, -55°C to 125°C operating range.","salesMarkdown":"## 6.8 µF at 35 V — bulk decoupling in a 2917 footprint The TAJY685K035RNJ: This is a molded tantalum capacitor from the TAJ series, rated 6.8 µF with ±10% tolerance at 35 VDC. The 900 mOhm ESR is typical for a 35 V tantalum in this case size. That ESR limits ripple current handling to roughly 200–300 mA RMS before self-heating becomes a concern; for a low-ripple DC rail it is fine, but if the rail carries switching ripple above 500 mA, a polymer or ceramic alternative would run cooler. ## Active production — no end-of-life scramble At 125°C the voltage derating curve applies — KYOCERA AVX recommends derating to 2/3 of rated voltage above 85°C, so at 125°C the applied voltage should stay below ~23 VDC to keep the failure rate within the FMEA budget. ## T491X685K035AT cross-shop — same footprint, different ESR The T491X685K035AT (KEMET) is a common alternative in the same 2917 case, same 6.8 µF / 35 V rating. The TAJY685K035RNJ carries a 900 mOhm ESR, while the T491X series typically specifies a lower ESR (around 500 mOhm for the X case). If your design is ripple-current-limited, the T491X may run cooler; if the ESR is not the limiting factor, the TAJY is a drop-in swap on the same land pattern.","metaTitle":"TAJY685K035RNJ – 6.8 µF 35 V Molded Tantalum Cap, 2917","metaDescription":"KYOCERA AVX TAJY685K035RNJ: 6.8 µF, 35 V, ±10%, 2917 (7343 Metric) molded tantalum capacitor. 900 mOhm ESR, -55°C to 125°C. Active production.","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":"±10%","Capacitance":"6.8 µF","Failure Rate":"-","Lead Spacing":"-","Mounting Type":"Surface Mount","Package / Case":"2917 (7343 Metric)","Product Status":"Active","Voltage - Rated":"35 V","lifecycle_stage":"unknown","Lifetime @ Temp.":"-","Size / Dimension":"0.287\\\" L x 0.169\\\" W (7.30mm x 4.30mm)","Height - Seated (Max)":"0.079\\\" (2.00mm)","Operating Temperature":"-55°C ~ 125°C","Manufacturer Size Code":"Y","ESR (Equivalent Series Resistance)":"900mOhm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.0557","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/ce09bb895bbc5407352e9a690f57411c.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest alternative to TAJY685K035RNJ?","answer":"The KEMET T491X685K035AT is the most common pin-compatible alternative in the same 2917 (7343 Metric) footprint, same 6.8 µF / 35 V rating. The main difference is ESR: the T491X typically has a lower ESR (~500 mOhm) versus the TAJY's 900 mOhm. Both are ±10% tolerance and share the same land pattern."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/kyocera-avx/TAJY685K035RNJ","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/kyocera-avx/TAJY685K035RNJ 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}}