{"id":10341,"date":"2026-07-19T12:25:15","date_gmt":"2026-07-19T12:25:15","guid":{"rendered":"https:\/\/ic-vendor.com\/1206l035-30wr\/"},"modified":"2026-07-19T12:25:15","modified_gmt":"2026-07-19T12:25:15","slug":"1206l035-30wr","status":"publish","type":"post","link":"https:\/\/ic-vendor.com\/zh\/1206l035-30wr\/","title":{"rendered":"1206L035\/30WR"},"content":{"rendered":"

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

The 1206L035\/30WR is a PolySwitch PPTC (Polymeric Positive Temperature Coefficient) resettable fuse from Littelfuse’s 1206L series. It provides surface-mount overcurrent protection with a hold current of 0.35A at a maximum voltage of 30V, featuring a thin-film design in a compact 1206 package.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n
Hold Current (Ih)<\/td>\n0.35A (350mA)<\/td>\n<\/tr>\n
Maximum Voltage<\/td>\n30V<\/td>\n<\/tr>\n
Trip Current (It)<\/td>\n0.70A typical<\/td>\n<\/tr>\n
Maximum Fault Current<\/td>\n100A<\/td>\n<\/tr>\n
Resistance Rmin<\/td>\n0.25\u03a9 typical<\/td>\n<\/tr>\n
Resistance R1max<\/td>\n1.50\u03a9 typical<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40\u00b0C to +85\u00b0C<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\n1206 (3216 Metric)<\/td>\n<\/tr>\n
Series<\/td>\nPOLYFUSE 1206L<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • Resettable overcurrent protection \u2014 no replacement needed<\/li>\n
  • Compact 1206 thin-film SMD package<\/li>\n
  • Low resistance for minimal voltage drop<\/li>\n
  • Fast trip response to fault currents<\/li>\n
  • RoHS compliant, lead-free, halogen-free<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • USB port current limiting<\/li>\n
    • Battery and charger protection<\/li>\n
    • Mobile phone port protection<\/li>\n
    • Plug-and-play motherboard protection<\/li>\n
    • Disk drive and peripheral protection<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The 1206L035\/30WR is a PolySwitch PPTC (Polymeric Positive Temperature Coefficient) resettable fuse from Littelfuse’s 1206L series. It provides surface-mount overcurrent protection with a hold current of 0.35A at a maximum voltage of 30V, featuring a thin-film design in a compact 1206 package. Key Specifications Hold Current (Ih) 0.35A (350mA) Maximum Voltage 30V Trip […]<\/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":[1610,1611,1612],"chip_brand":[200],"class_list":["post-10341","post","type-post","status-publish","format-standard","hentry","category-passive-components","tag-1206l035-30wr","tag-pptc","tag-resettable-fuse","chip_brand-littelfuse"],"acf":{"brief_explanation":"PPTC Resettable Fuse 0.35A Ih 30V 1206 Thin, -40~85\u00b0C","date_code":"","package_case":"1206 (3216 Metric), SMD","in_stock":11000,"datasheet":"https:\/\/www.littelfuse.com\/media?res=700088&download=1","price":"","product_introduction":"The 1206L035\/30WR is a resettable PPTC fuse from Littelfuse's POLYFUSE 1206L series, providing 0.35A hold current and 30V maximum voltage rating in a compact 1206 thin-film surface-mount package. It operates as a self-resetting overcurrent protector: under normal conditions it presents low resistance, but when the current exceeds the trip threshold, it rapidly transitions to a high-impedance state, limiting fault current. After the fault is removed and the device cools, it automatically resets to its low-resistance state.","working_principle":"The PPTC device consists of a polymer matrix loaded with conductive particles (typically carbon black). Under normal operating conditions, the conductive particles form percolation paths through the polymer, resulting in low resistance. When an overcurrent condition causes I\u00b2R heating that raises the device temperature above the polymer's crystalline transition temperature, the polymer expands dramatically, breaking the conductive paths and causing a rapid increase in resistance (by several orders of magnitude). This limits the fault current to a safe level. When the fault is removed and the device cools, the polymer contracts and the conductive paths reform, restoring low resistance.","pin_description":"
      Terminal<\/th>Function<\/th><\/tr>
      1<\/td>Current path terminal<\/td><\/tr>
      2<\/td>Current path terminal<\/td><\/tr><\/table>

      Note: Bidirectional device \u2014 no polarity.<\/p>","application_scenarios":"

      • USB port overcurrent limiting<\/li>
      • Lithium-ion battery and charger protection<\/li>
      • Mobile phone port and peripheral protection<\/li>
      • Plug-and-play motherboard and bus protection<\/li>
      • Disk drive, PDA, and digital camera interfaces<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Ih<\/th>Vmax<\/th>Notes<\/th><\/tr>
        Bourns<\/td>MF-MSMF035-2<\/td>0.35A<\/td>33V<\/td>1206 PPTC<\/td><\/tr>
        Vishay<\/td>PTC735035M<\/td>0.35A<\/td>30V<\/td>1206 PPTC<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts\/10341","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=10341"}],"version-history":[{"count":0,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts\/10341\/revisions"}],"wp:attachment":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/media?parent=10341"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/categories?post=10341"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/tags?post=10341"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=10341"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}