{"id":10530,"date":"2026-07-20T04:55:47","date_gmt":"2026-07-20T04:55:47","guid":{"rendered":"https:\/\/ic-vendor.com\/eefsx0d221er\/"},"modified":"2026-07-20T04:55:47","modified_gmt":"2026-07-20T04:55:47","slug":"eefsx0d221er","status":"publish","type":"post","link":"https:\/\/ic-vendor.com\/ar\/eefsx0d221er\/","title":{"rendered":"EEFSX0D221ER"},"content":{"rendered":"

\u0646\u0638\u0631\u0629 \u0639\u0627\u0645\u0629 \u0639\u0644\u0649 \u0627\u0644\u0645\u0646\u062a\u062c<\/h2>\n

The Panasonic EEFSX0D221ER is a 220 microF, 2V SP-Cap (Specialty Polymer Aluminum) capacitor from the SX series. Featuring ultra-low ESR of 9 mOhm, high ripple current of 6.3A, and compact 7.3 x 4.3 x 1.9 mm SMD package, it is designed for high-performance VRM (Voltage Regulator Module) and CPU\/GPU power delivery applications requiring extremely low impedance.<\/p>\n

\u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a \u0627\u0644\u0631\u0626\u064a\u0633\u064a\u0629<\/h2>\n\n\n\n\n\n\n\n\n\n\n
Capacitance<\/td>\n220 microF<\/td>\n<\/tr>\n
Rated Voltage<\/td>\n2 V DC<\/td>\n<\/tr>\n
Tolerance<\/td>\nplus\/minus 20%<\/td>\n<\/tr>\n
ESR (100 kHz, 20C)<\/td>\n9 mOhm (Max)<\/td>\n<\/tr>\n
Ripple Current<\/td>\n6.3 A (100 kHz, 105C)<\/td>\n<\/tr>\n
Leakage Current<\/td>\n44 microA (Max)<\/td>\n<\/tr>\n
Lifetime<\/td>\n2000 hours @ 105C<\/td>\n<\/tr>\n
\u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644<\/td>\n-55C to +105C<\/td>\n<\/tr>\n
\u0627\u0644\u062d\u0632\u0645\u0629<\/td>\nSMD 7.3 x 4.3 x 1.9 mm (2917)<\/td>\n<\/tr>\n<\/table>\n

\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n
    \n
  • Ultra-low ESR of 9 mOhm for high-frequency noise suppression<\/li>\n
  • High ripple current capability of 6.3A for VRM applications<\/li>\n
  • Conductive polymer electrolyte for stable ESR across temperature<\/li>\n
  • Compact 1.9mm height SMD package for low-profile designs<\/li>\n
  • 2000-hour lifetime at 105C for reliable long-term operation<\/li>\n
  • Embossed carrier tape packaging for automated assembly<\/li>\n
  • RoHS compliant<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • CPU and GPU VRM output capacitors<\/li>\n
    • FPGA and ASIC core power decoupling<\/li>\n
    • DC-DC converter output filtering for low-voltage high-current rails<\/li>\n
    • Server and networking equipment power delivery<\/li>\n
    • Portable device power management<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The Panasonic EEFSX0D221ER is a 220 microF, 2V SP-Cap (Specialty Polymer Aluminum) capacitor from the SX series. Featuring ultra-low ESR of 9 mOhm, high ripple current of 6.3A, and compact 7.3 x 4.3 x 1.9 mm SMD package, it is designed for high-performance VRM (Voltage Regulator Module) and CPU\/GPU power delivery applications requiring […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13,29],"tags":[1834],"chip_brand":[144],"class_list":["post-10530","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-power-management-ics-pmic","tag-eefsx0d221er","chip_brand-on"],"acf":{"brief_explanation":"SP-Cap polymer aluminum capacitor, 220uF, 2V, 9mOhm ESR, 6.3A ripple, SMD 2917, SX series","date_code":"","package_case":"SMD 7.3 x 4.3 x 1.9 mm (2917 \/ 7343 Metric)","in_stock":3456,"datasheet":"https:\/\/na.industrial.panasonic.com\/products\/capacitors\/polymer-capacitors\/sp-cap-polymer-aluminum\/series\/79585","price":"$0.85 @ 1ku","product_introduction":"The Panasonic EEFSX0D221ER is a 220 microF, 2V Specialty Polymer Aluminum (SP-Cap) capacitor from the SX series, designed for high-performance power delivery applications. The SX series utilizes a conductive polymer electrolyte that achieves ultra-low ESR of 9 mOhm maximum \u2014 significantly lower than traditional aluminum electrolytic or tantalum capacitors. The high ripple current rating of 6.3A and 2V rating make it ideal for CPU\/GPU VRM output stages operating at sub-1V core voltages. The compact 7.3 x 4.3 x 1.9mm SMD package with 2917 footprint provides excellent volumetric efficiency. The polymer electrolyte maintains stable ESR across the full operating temperature range (-55C to 105C), unlike liquid electrolytics whose ESR increases dramatically at low temperatures.","working_principle":"The EEFSX0D221ER uses a conductive polymer (typically polypyrrole or PEDOT) as the solid electrolyte, replacing the liquid electrolyte found in traditional aluminum capacitors. The polymer is formed in-situ on the etched aluminum oxide dielectric layer, filling the microscopic tunnels in the etched foil. The conductive polymer has much lower resistivity than liquid electrolyte (typically 1-10 S\/cm vs 0.01 S\/cm for liquid), resulting in the 9 mOhm ESR. The polymer does not evaporate like liquid electrolyte, providing stable ESR over time and temperature. The capacitor is polarized \u2014 the aluminum oxide layer on the anode foil serves as the dielectric. The 2V rating requires an oxide layer of approximately 3 nm thickness. The high 6.3A ripple current capability results directly from the low ESR \u2014 power dissipation from ripple current equals I_ripple squared times ESR, so the 9 mOhm ESR allows very high ripple current with minimal self-heating.","pin_description":"\n
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>\n
      1<\/td>Positive (+)<\/td>Terminal<\/td>Anode pad \u2014 marked with + on top surface, connect to positive voltage<\/td><\/tr>\n
      2<\/td>Negative (-)<\/td>Terminal<\/td>Cathode pad \u2014 connect to ground<\/td><\/tr>\n<\/table>","application_scenarios":"
        \n
      • CPU VRM output bulk and decoupling capacitor for 1.0-1.8V rails<\/li>\n
      • GPU power delivery network decoupling for gaming and AI accelerators<\/li>\n
      • FPGA VCCINT power filtering for high-current low-voltage cores<\/li>\n
      • Server motherboard VRM output stages for Intel\/AMD processors<\/li>\n
      • USB PD fast-charging circuit output filtering<\/li>\n<\/ul>","alternative_models":"\n
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>\n
        Panasonic<\/td>EEFSX0D271ER<\/td>SMD 2917<\/td>270uF, same ESR<\/td><\/tr>\n
        Panasonic<\/td>EEFSX0D181ER<\/td>SMD 2917<\/td>180uF variant<\/td><\/tr>\n
        Murata<\/td>GRM32EC81C226ME11<\/td>1210<\/td>MLCC alternative, 22uF 16V<\/td><\/tr>\n
        KEMET<\/td>T520B227M2R5ATE009<\/td>B-case<\/td>Tantalum polymer equivalent<\/td><\/tr>\n
        Polymer<\/td>APSC6T220D2R5NF<\/td>SMD<\/td>Alternative polymer aluminum<\/td><\/tr>\n<\/table>"},"_links":{"self":[{"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/posts\/10530","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/comments?post=10530"}],"version-history":[{"count":0,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/posts\/10530\/revisions"}],"wp:attachment":[{"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/media?parent=10530"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/categories?post=10530"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/tags?post=10530"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=10530"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}