{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TAJR156M002RNJ","brand":"KYOCERA AVX","brandSlug":"kyocera-avx","productSlug":"TAJR156M002RNJ","canonicalUrl":"https://icboms.com/kyocera-avx/TAJR156M002RNJ","factsUrl":"https://icboms.com/api/mcp/products/TAJR156M002RNJ","rawCanonicalId":null},"summary":{"shortDescription":"KYOCERA AVX TAJ series, molded tantalum capacitor, 15 µF ±20%, 2.5 V rated, 0805 (2012 metric) case, 4.1 Ohm ESR, -55 to 125 °C operating range.","salesMarkdown":"## 15 µF at 2.5 V in 0805 — the ESR is the decoupling bottleneck The TAJR156M002RNJ: This is a 15 µF, 2.5 V rated molded tantalum from the TAJ series, in an 0805 (2012 metric) case. The 4.1 Ohm ESR at 2.5 V means the ripple current capability is limited — for a 100 kHz switching regulator output, the AC ripple current through the cap generates I²R losses that heat the part. On a 2.5 V core rail, every 10 mV of ripple translates to roughly 2.4 mA of ripple current; at 4.1 Ohm that is 24 µW of self-heating, negligible for a single cap, but in a bank of four the combined ESR drops to 1 Ohm and the ripple sharing becomes uneven without matched ESR grades. For an avionics black box that sees -40 °C cold soak and +105 °C under full load, the 125 °C ceiling gives 20 °C of margin above the hottest internal ambient. The same part works in a downhole tool rated to 125 °C — no need for a separate high-temp BOM line. ## 0805 case, size code R — layout fit and footprint 0805 (2012 metric) footprint, size code R per EIA-535. Seated height is 1.20 mm max — fits under a 1.5 mm clearance shield or on the underside of a 1.6 mm board with 0.4 mm clearance to the next PCB. The land pattern is the standard 0805 tantalum pad: 1.0 mm × 1.2 mm per terminal, 1.0 mm gap. No via-in-pad required. ## Active production — sourced per RFQ The ±20 % tolerance and 2.5 V rating are standard for this series — no special screening or date-code hold.","metaTitle":"TAJR156M002RNJ 15 µF 2.5 V Tantalum Cap, 0805, 4.1 Ohm ESR","metaDescription":"TAJR156M002RNJ — 15 µF, 2.5 V, ±20% molded tantalum, 0805 case, 4.1 Ohm ESR, -55 to 125 °C. Active production, KYOCERA AVX. 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":"±20%","Capacitance":"15 µF","Failure Rate":"-","Lead Spacing":"-","Mounting Type":"Surface Mount","Package / Case":"0805 (2012 Metric)","Product Status":"Active","Voltage - Rated":"2.5 V","lifecycle_stage":"unknown","Lifetime @ Temp.":"-","Size / Dimension":"0.081\\\" L x 0.051\\\" W (2.05mm x 1.30mm)","Height - Seated (Max)":"0.047\\\" (1.20mm)","Operating Temperature":"-55°C ~ 125°C","Manufacturer Size Code":"R","ESR (Equivalent Series Resistance)":"4.1Ohm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.3035","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/ce09bb895bbc5407352e9a690f57411c.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I download the datasheet for TAJR156M002RNJ?","answer":"The full KYOCERA AVX TAJ series datasheet covers the TAJR156M002RNJ. It is available from the manufacturer's website under the TAJ series documentation. The key ratings — 15 µF, 2.5 V, 4.1 Ohm ESR, 0805 case — are listed in the spec table above."},{"question":"Is TAJR156M002RNJ RoHS compliant?","answer":"The TAJ series from KYOCERA AVX is RoHS compliant and halogen-free per the manufacturer's standard material declaration. No exemption applies for this part number."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/kyocera-avx/TAJR156M002RNJ","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/kyocera-avx/TAJR156M002RNJ 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}}