{"id":10336,"date":"2026-07-09T14:48:24","date_gmt":"2026-07-09T14:48:24","guid":{"rendered":"https:\/\/materialparts.com\/0466-125nrhf\/"},"modified":"2026-07-09T14:48:24","modified_gmt":"2026-07-09T14:48:24","slug":"0466-125nrhf","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/0466-125nrhf\/","title":{"rendered":"0466.125NRHF"},"content":{"rendered":"

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

The 0466.125NRHF is a 125mA fast-acting surface mount fuse from Littelfuse’s (formerly Wickmann) 466 Series. Housed in a Slim 1206 package with halogen-free construction, it provides secondary circuit protection for space-constrained portable electronic devices with a very fast-acting (FF) opening characteristic.<\/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\n\n
Current Rating<\/td>\n0.125A (125mA)<\/td>\n<\/tr>\n
Voltage Rating<\/td>\n125V AC\/DC<\/td>\n<\/tr>\n
Breaking Capacity<\/td>\n50A @ 125V AC\/DC<\/td>\n<\/tr>\n
Opening Characteristic<\/td>\nVery Fast-Acting (FF)<\/td>\n<\/tr>\n
Cold Resistance<\/td>\n3.925 \u03a9<\/td>\n<\/tr>\n
Nominal Melting I\u00b2t<\/td>\n0.00064 A\u00b2sec<\/td>\n<\/tr>\n
Nominal Voltage Drop<\/td>\n634.37 mV<\/td>\n<\/tr>\n
Nominal Power Dissipation<\/td>\n0.0793 W<\/td>\n<\/tr>\n
\u0627\u0644\u062d\u0632\u0645\u0629<\/td>\nSlim 1206 (3.175 x 1.524 mm)<\/td>\n<\/tr>\n
\u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644<\/td>\n-55\u00b0C to +90\u00b0C<\/td>\n<\/tr>\n
Halogen Free<\/td>\nYes<\/td>\n<\/tr>\n<\/table>\n

\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n
    \n
  • Very fast-acting (FF) opening for sensitive circuit protection<\/li>\n
  • Halogen-free and lead-free construction<\/li>\n
  • Ultra-low profile Slim 1206 package<\/li>\n
  • UL, CSA, TUV recognized and CE marked<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • Cell phones and smartphones<\/li>\n
    • Battery pack protection<\/li>\n
    • Digital cameras and portable devices<\/li>\n
    • Hard disk drives and SSDs<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The 0466.125NRHF is a 125mA fast-acting surface mount fuse from Littelfuse’s (formerly Wickmann) 466 Series. Housed in a Slim 1206 package with halogen-free construction, it provides secondary circuit protection for space-constrained portable electronic devices with a very fast-acting (FF) opening characteristic. Key Specifications Current Rating 0.125A (125mA) Voltage Rating 125V AC\/DC Breaking Capacity […]<\/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":[1602],"chip_brand":[200],"class_list":["post-10336","post","type-post","status-publish","format-standard","hentry","category-ferrite-beads","category-passive-components","tag-0466-125nrhf","chip_brand-littelfuse"],"acf":{"brief_explanation":"125mA FF SMD Fuse, 125VAC\/DC, Slim 1206, Halogen-Free, 3.925\u03a9","date_code":"","package_case":"Slim 1206 (3.175 x 1.524 x 0.58 mm)","in_stock":2688,"datasheet":"https:\/\/www.littelfuse.com\/media?type=Specification&documentId=31369","price":"$0.39 @ 10pc","product_introduction":"The Littelfuse 0466.125NRHF is a 125mA very fast-acting surface mount fuse from the 466 Series, designed for secondary circuit protection in space-constrained portable electronic devices. Housed in a Slim 1206 package (3.175 x 1.524 x 0.58mm), this halogen-free and lead-free fuse features a very fast-acting (FF) opening characteristic with a nominal melting I\u00b2t of 0.00064 A\u00b2sec. The 50A breaking capacity at 125V AC\/DC ensures reliable interruption of fault currents. Recognized by UL, CSA, and TUV, it meets international safety standards.","working_principle":"The 466 Series fuse uses an alloy-based thin-film element deposited on a high-temperature substrate. When current through the fuse exceeds the rated value, the element heats up due to I\u00b2R power dissipation. At the melting point, the element opens, interrupting the circuit. The very fast-acting (FF) characteristic means the fuse opens quickly at relatively low overcurrents: 200% of rated current opens within 5 seconds, and 300% opens within 0.2 seconds. The alloy element construction provides superior inrush withstand characteristics compared to ceramic or glass-based chip fuses, reducing nuisance tripping from transient surges.","pin_description":"
      Terminal<\/th>Material<\/th>Function<\/th><\/tr>
      Terminal 1<\/td>Sn\/Ni\/Cu<\/td>Fuse element connection (solderable)<\/td><\/tr>
      Terminal 2<\/td>Sn\/Ni\/Cu<\/td>Fuse element connection (solderable)<\/td><\/tr><\/table>","application_scenarios":"
      • Cell phone and smartphone secondary protection<\/li>
      • Li-ion battery pack overcurrent protection<\/li>
      • Portable digital device circuit protection<\/li>
      • Hard disk drive and SSD power protection<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Rating<\/th>Notes<\/th><\/tr>
        Littelfuse<\/td>0466.125NR<\/td>125mA<\/td>Non-halogen-free version<\/td><\/tr>
        Bourns<\/td>SF-1206FP125-2<\/td>125mA<\/td>Fast-acting 1206 fuse<\/td><\/tr>
        Schurter<\/td>USF 1206-125<\/td>125mA<\/td>Ultra-fast SMD fuse<\/td><\/tr>
        Littelfuse<\/td>0433012.NR<\/td>125mA<\/td>433 Series alternative<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/10336","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/comments?post=10336"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/10336\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=10336"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=10336"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=10336"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=10336"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}