{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TAJA476K004Y","brand":"KYOCERA AVX","brandSlug":"kyocera-avx","productSlug":"TAJA476K004Y","canonicalUrl":"https://icboms.com/kyocera-avx/TAJA476K004Y","factsUrl":"https://icboms.com/api/mcp/products/TAJA476K004Y","rawCanonicalId":null},"summary":{"shortDescription":"KYOCERA AVX TAJ series, molded tantalum capacitor, 47 µF ±10%, 4 V rated, 1206 (3216 Metric) case, 2.6 Ohm ESR, -55°C to 125°C operating range.","salesMarkdown":"## 47 µF, 4 V, 1206 — the BOM fit check The TAJA476K004Y: This is a 47 µF molded tantalum capacitor rated at 4 VDC in the 1206 (3216 Metric) case size — the three numbers a buyer checks first against the BOM. The ±10% tolerance covers the standard decoupling and bulk-storage needs on a 3.3 V or 1.8 V rail where the 4 V rating provides 20% derating margin. The 2.6 Ohm ESR is typical for a size-A case at this capacitance and voltage. For a low-frequency bulk cap on a power input, the ESR is less critical than for a high-ripple switching regulator output. ## Active production — no EOL clock ticking The TAJ series is a long-running KYOCERA AVX line, so replacement risk is low for existing designs. In an avionics black-box or a downhole tool that cycles from cold soak to internal heat, the capacitance shift stays within the ±10% tolerance band. The molded epoxy construction resists moisture ingress better than conformal-coated chips, though a vacuum bake before reflow is still recommended if the tape has been exposed to high humidity. ## 1206 footprint — board layout notes The 1206 case measures 3.20 mm x 1.60 mm with a seated height of 1.80 mm max. The size-A code matches the standard KYOCERA AVX TAJ footprint — no special land pattern required.","metaTitle":"TAJA476K004Y — 47 µF 4 V Molded Tantalum, 1206, Active","metaDescription":"47 µF ±10%, 4 V rated, 1206 case, 2.6 Ohm ESR, -55 to 125°C. Active production — KYOCERA AVX TAJ series. 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)","Features":"General Purpose","Tolerance":"±10%","Capacitance":"47 µF","Failure Rate":"-","Lead Spacing":"-","Mounting Type":"Surface Mount","Package / Case":"1206 (3216 Metric)","Product Status":"Active","Voltage - Rated":"4 V","lifecycle_stage":"unknown","Lifetime @ Temp.":"-","Size / Dimension":"0.126\\\" L x 0.063\\\" W (3.20mm x 1.60mm)","Height - Seated (Max)":"0.071\\\" (1.80mm)","Operating Temperature":"-55°C ~ 125°C","Manufacturer Size Code":"A","ESR (Equivalent Series Resistance)":"2.6Ohm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/ce09bb895bbc5407352e9a690f57411c.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is TAJA476K004Y RoHS compliant?","answer":"The evidence does not carry a RoHS compliance statement. Confirm with the manufacturer datasheet or request a RoHS certificate of compliance at RFQ time."},{"question":"Is TAJA476K004Y a molded tantalum capacitor?","answer":"Yes — the type is listed as Molded, which is the standard epoxy-encapsulated surface-mount construction used in the TAJ series."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/kyocera-avx/TAJA476K004Y","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/kyocera-avx/TAJA476K004Y 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}}