{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TAJW227M004RNJ","brand":"KYOCERA AVX","brandSlug":"kyocera-avx","productSlug":"TAJW227M004RNJ","canonicalUrl":"https://icboms.com/kyocera-avx/TAJW227M004RNJ","factsUrl":"https://icboms.com/api/mcp/products/TAJW227M004RNJ","rawCanonicalId":null},"summary":{"shortDescription":"KYOCERA AVX TAJ series, molded tantalum capacitor, 220 µF ±20%, 4 V rated, 1.2 Ohm ESR, -55°C to 125°C, 2312 (6032 Metric) surface-mount case, size code W.","salesMarkdown":"## 220 µF bulk cap with a wide temperature ceiling The TAJW227M004RNJ: This is a 220 µF molded tantalum capacitor rated at 4 V with a 1.2 Ohm ESR — a general-purpose bulk-decoupling or hold-up cap for moderate-ripple rails. The 2312 (6032 Metric) case measures 6.00 mm x 3.20 mm with a seated height of just 1.50 mm — low enough to fit under a board shield or on a tight mezzanine stack. At 1.2 Ohm ESR, this cap is not a low-ESR type — it is a mid-range general-purpose part. For a 100 kHz ripple current of, say, 500 mA, the self-heating from ESR dissipation is roughly 0.3 W, which is manageable in the 2312 case as long as the ambient stays within the -55°C to 125°C window. If your rail has high-frequency switching ripple above 1 A RMS, step up to a low-ESR (0.1–0.3 Ohm) polymer or multi-anode tantalum.","metaTitle":"TAJW227M004RNJ — KYOCERA AVX 220 µF 4 V Molded Tantalum","metaDescription":"220 µF ±20% molded tantalum cap, 4 V rated, 1.2 Ohm ESR, -55°C to 125°C, 2312 (6032 Metric) case. Active production. RFQ for pricing and availability.","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":"220 µF","Failure Rate":"-","Lead Spacing":"-","Mounting Type":"Surface Mount","Package / Case":"2312 (6032 Metric)","Product Status":"Active","Voltage - Rated":"4 V","lifecycle_stage":"unknown","Lifetime @ Temp.":"-","Size / Dimension":"0.236\\\" L x 0.126\\\" W (6.00mm x 3.20mm)","Height - Seated (Max)":"0.059\\\" (1.50mm)","Operating Temperature":"-55°C ~ 125°C","Manufacturer Size Code":"W","ESR (Equivalent Series Resistance)":"1.2Ohm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.6631","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/ce09bb895bbc5407352e9a690f57411c.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the ESR of TAJW227M004RNJ?","answer":"The listed ESR is 1.2 Ohm. This is a mid-range value for a 220 µF 4 V molded tantalum — suitable for bulk filtering and hold-up, not for high-frequency decoupling where sub-0.5 Ohm ESR is preferred."},{"question":"Is TAJW227M004RNJ RoHS compliant?","answer":"The part is listed as a General Purpose molded tantalum from the TAJ series. KYOCERA AVX TAJ series parts are typically RoHS compliant, but confirm the specific date-code compliance certificate with your distributor at RFQ."},{"question":"How does TAJW227M004RNJ compare to other 220 µF 4 V tantalum capacitors?","answer":"Many 220 µF 4 V tantalums in the same case size carry a 1.0–2.0 Ohm ESR and a -55°C to 85°C or 105°C rating. The TAJW227M004RNJ's 125°C ceiling is wider than most general-purpose parts, making it a better fit for high-temperature environments. The ESR at 1.2 Ohm is typical — not low-ESR, not high-ESR."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/kyocera-avx/TAJW227M004RNJ","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/kyocera-avx/TAJW227M004RNJ 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}}