{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPSD686K020R0200","brand":"KYOCERA AVX","brandSlug":"kyocera-avx","productSlug":"TPSD686K020R0200","canonicalUrl":"https://icboms.com/kyocera-avx/TPSD686K020R0200","factsUrl":"https://icboms.com/api/mcp/products/TPSD686K020R0200","rawCanonicalId":null},"summary":{"shortDescription":"KYOCERA AVX TPS series, Molded tantalum capacitor, 68 µF, 20 V, ±10%, 200 mOhm ESR, 2917 (7343 Metric) package, -55°C to 125°C.","salesMarkdown":"## What the 200 mOhm ESR means for your rail The TPSD686K020R0200: For a 12 V to 5 V buck converter output, this cap handles the bulk of the switching ripple, but the ESR means you still need a low-ESR ceramic in parallel for the high-frequency content above 1 MHz. The 2917 (7343 metric) case is the standard D-size tantalum chip footprint — same land pattern as the older TAJ D case, so it drops onto existing boards without a layout change. The seated height is 3.10 mm max, which fits under most low-profile heatsinks or enclosure lids. ## Temperature range and derating Rated for -55°C to 125°C, this cap covers the full military/industrial temperature band. At 125°C, the voltage derating rule for tantalum capacitors is 50% — so at 20 V rated, you should not exceed 10 V DC bias at the high end. The ESR also climbs with temperature; at 125°C, expect the 200 mOhm to roughly double, which further reduces the ripple current capability. The ±10% tolerance is standard for tantalum — the capacitance will measure between 61.2 µF and 74.8 µF at 25°C and 120 Hz. For a timing circuit, that spread matters; for bulk decoupling, it is fine. No official pin-compatible second source is listed, but the 2917 D-case footprint is shared by multiple tantalum suppliers (Kemet, Vishay). If you need a drop-in alternative, look for a 68 µF, 20 V, D-case tantalum with similar ESR — just confirm the polarity marking orientation matches your board silk screen.","metaTitle":"KYOCERA AVX TPSD686K020R0200 Tantalum Capacitor, 68 µF, 20 V","metaDescription":"KYOCERA AVX TPSD686K020R0200 molded tantalum capacitor, 68 µF, 20 V, ±10%, 200 mOhm ESR, -55°C to 125°C, 2917 package. Active production, sourced 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":"TPS","Package":"Tape & Reel (TR) Cut Tape (CT)","Features":"General Purpose","Tolerance":"±10%","Capacitance":"68 µF","Failure Rate":"-","Lead Spacing":"-","Mounting Type":"Surface Mount","Package / Case":"2917 (7343 Metric)","Product Status":"Active","Voltage - Rated":"20 V","lifecycle_stage":"unknown","Lifetime @ Temp.":"-","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)":"200mOhm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.3800","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/b00017213ae4c6777a643c3e703ff6ae.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the ESR of the TPSD686K020R0200 and why does it matter?","answer":"The ESR is 200 mOhm. This sets the ripple current limit for the capacitor — higher ripple current through that resistance generates heat, which limits how much AC current the cap can handle before exceeding its temperature rating. For a 1 A ripple at 100 kHz, the self-heating is I²R = 0.2 W, which raises the internal temperature about 10-15°C above ambient."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/kyocera-avx/TPSD686K020R0200","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/kyocera-avx/TPSD686K020R0200 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}}