{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPSE686K025S0125","brand":"KYOCERA AVX","brandSlug":"kyocera-avx","productSlug":"TPSE686K025S0125","canonicalUrl":"https://icboms.com/kyocera-avx/TPSE686K025S0125","factsUrl":"https://icboms.com/api/mcp/products/TPSE686K025S0125","rawCanonicalId":null},"summary":{"shortDescription":"KYOCERA AVX TPS series molded tantalum capacitor, TPSE686K025S0125, 68 µF, 25 V, ±10%, 125 mOhm ESR, 2917 (7343 Metric) case, E size code.","salesMarkdown":"## Bulk decoupling on a 25 V rail — what the 125 mOhm ESR means The TPSE686K025S0125: That ESR figure directly sets the ripple current rating and the filter cutoff frequency — for a buck converter switching at 500 kHz, the capacitor's impedance at the switching frequency is dominated by the ESR, not the capacitance, so the output ripple is roughly ESR × inductor ripple current. A lower ESR means less ripple voltage and less self-heating. The 25 V rating gives 1.67× derating on a 15 V rail and 2.5× on a 10 V rail — solid tantalums need that margin because surge current during power-up can spike the voltage across the dielectric. Running this part at 16 V or below keeps the failure rate in the reliable zone per MIL-PRF-55365 guidelines. ## Case, footprint, and rework reality That is a standard low-profile tantalum case; the pad layout matches the generic 2917 land pattern in IPC-7351B. The molded body has a clear polarity band on the anode end — no ambiguity for hand placement or AOI. Rework with a hot-air station at 300°C for 10 seconds per pad is safe — the molded epoxy body does not crack from thermal shock the way conformally coated tantalums sometimes do. That means it remains in the manufacturer's standard product portfolio and is available through authorized distribution channels. The part is not held in ready inventory at this storefront; each order is placed through the supply channel that best matches the requested quantity and delivery window.","metaTitle":"KYOCERA AVX TPSE686K025S0125 Tantalum Cap, 68 µF, 25 V","metaDescription":"KYOCERA AVX TPSE686K025S0125 molded tantalum capacitor, 68 µF, 25 V, ±10%, 125 mOhm ESR, 2917 case, -55°C to 125°C. 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":"25 V","lifecycle_stage":"unknown","Lifetime @ Temp.":"-","Size / Dimension":"0.200\\\" L x 0.100\\\" W (5.08mm x 2.54mm)","Height - Seated (Max)":"0.065\\\" (1.65mm)","Operating Temperature":"-55°C ~ 125°C","Manufacturer Size Code":"E","ESR (Equivalent Series Resistance)":"125mOhm @ 100kHz"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$5.2800","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/b00017213ae4c6777a643c3e703ff6ae.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the ESR of TPSE686K025S0125 and why does it matter?","answer":"The ESR is 125 mOhm at 100 kHz. That value determines how much ripple current the capacitor can handle before self-heating becomes a concern — for a typical 500 kHz buck converter, the output ripple voltage is roughly ESR times the inductor ripple current, so a 125 mOhm ESR keeps ripple under 50 mV for ripple currents up to 400 mA."},{"question":"What temperature range does TPSE686K025S0125 cover?","answer":"That covers the full industrial temperature band and most automotive under-hood ambient requirements, though it is not AEC-Q200 qualified — check the specific automotive-grade TPS variants if PPAP is required."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/kyocera-avx/TPSE686K025S0125","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/kyocera-avx/TPSE686K025S0125 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}}