{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"EEF-CX0G331R","brand":"Panasonic Electronic Components","brandSlug":"panasonic-electronic-components","productSlug":"EEF-CX0G331R","canonicalUrl":"https://icboms.com/panasonic-electronic-components/EEF-CX0G331R","factsUrl":"https://icboms.com/api/mcp/products/EEF-CX0G331R","rawCanonicalId":null},"summary":{"shortDescription":"Panasonic Electronic Components SP-Cap CX polymer capacitor, EEF-CX0G331R, 330 µF, 4 V, ±20%, 5.1 A ripple current at 100 kHz, 15 mΩ ESR, 2000 h at 105°C, 7343 SMD package, -55°C to 105°C.","salesMarkdown":"## 330 µF at 4 V in the 7343 polymer SMD footprint The EEF-CX0G331R: The SP-Cap CX series uses a solid polymer electrolyte rather than a liquid one — the key difference for the board designer is that ESR stays low and stable across temperature and frequency, without the drying-out failure mode that limits liquid electrolytic lifetime in high-ambient applications. In a 5 V bus running at 100–300 kHz switching, this ripple rating sets the headroom above the actual AC current the cap sees. ESR is 15 mΩ — solid polymer construction achieves this without the large case sizes a liquid electrolytic would need to match it. The combination of low ESR and 5.1 A ripple rating means the SP-Cap handles high-frequency switching noise where a ceramic or film cap would need to be impractically large. ## Thermal endurance and the 2000-hour lifetime at 105 °C The 2000-hour rating at 105 °C is the industry-standard endurance test condition for aluminum polymer caps — it does not mean the cap fails at 2000 hours, but that it is qualified to hold within spec at that condition. A cap running at 85 °C ambient in a closed enclosure will last significantly longer than one at 105 °C. The operating window spans -55 °C to 105 °C — the low end covers cold-start and outdoor/cold-chain environments, while 105 °C addresses the upper end of enclosed industrial and telecom equipment where ambient inside the chassis runs hot. ## Active sourcing posture — what the procurement buyer needs to know Listed as Active by Panasonic Electronic Components — this is a current-production part in an established series, not a legacy or NRND line. The SP-Cap CX family is a standard Digi-Key/Mouser line, which means multi-distributor availability is normal rather than a special condition. The Tape & Reel and Cut Tape packaging options cover both production-reel assembly and prototype散的 quantity需求.","metaTitle":"Panasonic EEF-CX0G331R, 330µF 4V Polymer SMD Capacitor","metaDescription":"Panasonic SP-Cap CX polymer capacitor, 330µF 4V 4V, ±20%, 5.1A ripple current at 100 kHz, 15mΩ ESR, 2000h at 105°C. Active — quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Specialty Capacitors"],"specifications":{"Mfr":"Panasonic Electronic Components","Type":"Polymer","Series":"SP-Cap CX","Package":"Tape & Reel (TR); Cut Tape (CT)","Ratings":"-","Tolerance":"±20%","Capacitance":"330 µF","Applications":"General Purpose","Lead Spacing":"-","Mounting Type":"Surface Mount","Package / Case":"2917 (7343 Metric)","Product Status":"Active","Voltage - Rated":"4 V","lifecycle_stage":"unknown","Lifetime @ Temp.":"2000 Hrs @ 105°C","Size / Dimension":"0.287\\\" L x 0.169\\\" W (7.30mm x 4.30mm)","Base Product Number":"EEF-CX","Height - Seated (Max)":"0.075\\\" (1.90mm)","Operating Temperature":"-55°C~105°C","Surface Mount Land Size":"0.287\\\" L x 0.169\\\" W (7.30mm x 4.30mm)","Ripple Current @ High Frequency":"5.1 A @ 100 kHz","ESR (Equivalent Series Resistance)":"15mOhm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.7100","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/af240a72bd0a92d91668c5a8a401367a.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/panasonic-electronic-components/EEF-CX0G331R","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/panasonic-electronic-components/EEF-CX0G331R 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}}