{"id":10409,"date":"2026-07-19T13:08:06","date_gmt":"2026-07-19T13:08:06","guid":{"rendered":"https:\/\/ic-vendor.com\/1801-8731-2\/"},"modified":"2026-07-19T13:08:06","modified_gmt":"2026-07-19T13:08:06","slug":"1801-8731-2","status":"publish","type":"post","link":"https:\/\/ic-vendor.com\/zh\/1801-8731-2\/","title":{"rendered":"1801.8731"},"content":{"rendered":"

\u4ea7\u54c1\u6982\u89c8<\/h2>\n

The 1801.8731 is a Schurter subminiature fuse with time-lag (slow-blow) characteristic. It is designed for overcurrent protection in equipment requiring high breaking capacity and compliance with IEC 60127 standards.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n
Fuse Type<\/td>\nSubminiature, Time-Lag<\/td>\n<\/tr>\n
Rated Current<\/td>\nPer specific variant (typically 1-10A range)<\/td>\n<\/tr>\n
Rated Voltage<\/td>\n250V AC<\/td>\n<\/tr>\n
Breaking Capacity<\/td>\nHigh (100A or 300A per IEC 60127)<\/td>\n<\/tr>\n
Characteristic<\/td>\nTime-Lag (T \/ slow-blow)<\/td>\n<\/tr>\n
Approval<\/td>\nIEC 60127, SEMKO<\/td>\n<\/tr>\n
\u5236\u9020\u5546<\/td>\nSchurter<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • Time-lag characteristic withstands inrush currents<\/li>\n
  • High breaking capacity<\/li>\n
  • IEC 60127 compliant<\/li>\n
  • Compact subminiature form factor<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Power supply primary overcurrent protection<\/li>\n
    • Industrial equipment protection<\/li>\n
    • Medical device input protection<\/li>\n
    • Consumer electronics AC line fuse<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The 1801.8731 is a Schurter subminiature fuse with time-lag (slow-blow) characteristic. It is designed for overcurrent protection in equipment requiring high breaking capacity and compliance with IEC 60127 standards. Key Specifications Fuse Type Subminiature, Time-Lag Rated Current Per specific variant (typically 1-10A range) Rated Voltage 250V AC Breaking Capacity High (100A or 300A […]<\/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":[64,60],"tags":[1707,1624,1708],"chip_brand":[975],"class_list":["post-10409","post","type-post","status-publish","format-standard","hentry","category-ferrite-beads","category-passive-components","tag-1801-8731","tag-fuse","tag-time-lag","chip_brand-schurter"],"acf":{"brief_explanation":"Subminiature Time-Lag Fuse, 250VAC, high breaking capacity, IEC 60127, Schurter","date_code":"","package_case":"Subminiature (5x20mm or equivalent)","in_stock":3200,"datasheet":"https:\/\/www.schurter.com\/en\/products\/fuses","price":"","product_introduction":"The 1801.8731 is a subminiature time-lag fuse from Schurter designed for overcurrent protection in primary and secondary circuits. The time-lag (slow-blow) characteristic allows temporary inrush currents during power-on while providing sustained overcurrent protection. The fuse complies with IEC 60127 standards and offers high breaking capacity suitable for industrial and medical equipment applications.","working_principle":"The time-lag fuse uses a fusible element with a special geometry (often with a reduced cross-section and solder blob) that creates a thermal delay. During normal operation and short-duration inrush currents, the element heats but does not reach the melting point. During a sustained overcurrent, the element heats beyond its melting point and the reduced section fuses, opening the circuit. The solder blob (in some designs) melts first and flows, further reducing the cross-section to accelerate fusing. The high breaking capacity is achieved by filling the fuse body with arc-quenching granular material (silica sand) that absorbs the arc energy when the element opens.","pin_description":"
      Terminal<\/th>Function<\/th><\/tr>
      End Cap 1<\/td>Fuse input connection<\/td><\/tr>
      End Cap 2<\/td>Fuse output connection<\/td><\/tr><\/table>","application_scenarios":"
      • AC\/DC power supply primary overcurrent protection<\/li>\n
      • Industrial equipment and machinery input protection<\/li>\n
      • Medical device (IEC 60601) line input fuse<\/li>\n
      • Consumer electronics AC mains protection<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Type<\/th>Notes<\/th><\/tr>
        Littelfuse<\/td>0215003.HXP<\/td>Slow-Blow<\/td>3A 125V, 5x20mm<\/td><\/tr>
        Belfuse<\/td>5ST 3-R<\/td>Time-Lag<\/td>3A 250V, 5x20mm<\/td><\/tr>
        Schurter<\/td>0001.1501<\/td>Fast-Acting<\/td>Fast-acting variant<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts\/10409","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/comments?post=10409"}],"version-history":[{"count":0,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts\/10409\/revisions"}],"wp:attachment":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/media?parent=10409"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/categories?post=10409"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/tags?post=10409"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=10409"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}