{"id":10350,"date":"2026-07-19T12:25:41","date_gmt":"2026-07-19T12:25:41","guid":{"rendered":"https:\/\/ic-vendor.com\/0456-025-er\/"},"modified":"2026-07-19T12:25:41","modified_gmt":"2026-07-19T12:25:41","slug":"0456-025-er","status":"publish","type":"post","link":"https:\/\/ic-vendor.com\/ar\/0456-025-er\/","title":{"rendered":"0456 025.ER"},"content":{"rendered":"

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

The 0456 025.ER is a surface-mount fuse from Littelfuse’s 456 Series, featuring a 2.5A current rating. It is part of the NANO\u00b2 very fast-acting surface mount fuse family, designed for precise overcurrent protection of sensitive semiconductor circuits.<\/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
Current Rating<\/td>\n2.5A (250mA)<\/td>\n<\/tr>\n
Fuse Characteristic<\/td>\nVery Fast-Acting (FF)<\/td>\n<\/tr>\n
Voltage Rating AC<\/td>\n125VAC<\/td>\n<\/tr>\n
Voltage Rating DC<\/td>\n63VDC<\/td>\n<\/tr>\n
Breaking Capacity<\/td>\n50A @ 125VAC<\/td>\n<\/tr>\n
Fuse Size<\/td>\n2410 (6125 Metric)<\/td>\n<\/tr>\n
\u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644<\/td>\n-55 \u062f\u0631\u062c\u0629 \u0645\u0626\u0648\u064a\u0629 \u0625\u0644\u0649 +125 \u062f\u0631\u062c\u0629 \u0645\u0626\u0648\u064a\u0629<\/td>\n<\/tr>\n
RoHS Compliant<\/td>\nYes<\/td>\n<\/tr>\n<\/table>\n

\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n
    \n
  • Very fast-acting for semiconductor-grade protection<\/li>\n
  • Compact 2410 (6125 metric) surface-mount package<\/li>\n
  • Low I\u00b2t for fast fault clearing<\/li>\n
  • Wide operating temperature range<\/li>\n
  • RoHS compliant<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • Protection of high-value ICs and semiconductors<\/li>\n
    • Power supply output protection<\/li>\n
    • Computer and server boards<\/li>\n
    • Alarm and security systems<\/li>\n
    • Medical apparatus<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The 0456 025.ER is a surface-mount fuse from Littelfuse’s 456 Series, featuring a 2.5A current rating. It is part of the NANO\u00b2 very fast-acting surface mount fuse family, designed for precise overcurrent protection of sensitive semiconductor circuits. Key Specifications Current Rating 2.5A (250mA) Fuse Characteristic Very Fast-Acting (FF) Voltage Rating AC 125VAC Voltage […]<\/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":[60],"tags":[1626,1624,1627],"chip_brand":[200],"class_list":["post-10350","post","type-post","status-publish","format-standard","hentry","category-passive-components","tag-0456-025-er","tag-fuse","tag-nano2","chip_brand-littelfuse"],"acf":{"brief_explanation":"NANO\u00b2 SMD Fuse 2.5A Very Fast-Acting 125VAC\/63VDC 2410, -55~125\u00b0C","date_code":"","package_case":"2410 (6125 Metric), SMD","in_stock":4800,"datasheet":"https:\/\/www.littelfuse.com\/media?res=700085&download=1","price":"","product_introduction":"The 0456 025.ER is a very fast-acting surface mount fuse from Littelfuse's 456 Series (NANO\u00b2 family), rated at 2.5A. The very fast-acting characteristic provides rapid fault clearing for sensitive semiconductor circuits where even brief overcurrent events can cause permanent damage. It is designed for applications requiring precise, fast overcurrent protection in a compact 2410 surface-mount footprint.","working_principle":"The fuse contains a precisely calibrated fuse element that melts rapidly when the current exceeds the rated value. The very fast-acting (FF) characteristic means the fuse opens in a very short time at overcurrent conditions, minimizing the energy (I\u00b2t) delivered to the protected circuit before the fault is cleared. This is critical for protecting semiconductor devices that can be damaged by even brief overcurrent events. After opening, the fuse must be replaced.","pin_description":"
      Terminal<\/th>Function<\/th><\/tr>
      1<\/td>Input terminal<\/td><\/tr>
      2<\/td>Output terminal<\/td><\/tr><\/table>","application_scenarios":"
      • High-value semiconductor IC power rail protection<\/li>
      • Switching power supply output protection<\/li>
      • Computer server motherboard rail protection<\/li>
      • Alarm and security system circuits<\/li>
      • Medical equipment power circuits<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Rating<\/th>Characteristic<\/th>Notes<\/th><\/tr>
        Littelfuse<\/td>0453 025<\/td>2.5A<\/td>Very Fast-Acting<\/td>0603 size variant<\/td><\/tr>
        Schurter<\/td>USFA 2.5A<\/td>2.5A<\/td>Fast-Acting<\/td>2410 SMD fuse<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/posts\/10350","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=10350"}],"version-history":[{"count":0,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/posts\/10350\/revisions"}],"wp:attachment":[{"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/media?parent=10350"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/categories?post=10350"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/tags?post=10350"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=10350"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}