{"id":10759,"date":"2026-07-20T12:43:56","date_gmt":"2026-07-20T12:43:56","guid":{"rendered":"https:\/\/ic-vendor.com\/minismdc150f-12-2\/"},"modified":"2026-07-20T12:43:56","modified_gmt":"2026-07-20T12:43:56","slug":"minismdc150f-12-2","status":"publish","type":"post","link":"https:\/\/ic-vendor.com\/zh\/minismdc150f-12-2\/","title":{"rendered":"MINISMDC150F\/12-2"},"content":{"rendered":"

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

The MINISMDC150F\/12-2 from Littelfuse is a polymer PTC resettable fuse (PolySwitch) from the miniSMD series with a 1.5 A hold current and 2.8 A trip current at 12 VDC. Packaged in a 1812 (4532 metric) surface-mount footprint, it provides resettable overcurrent protection for portable electronics, computers, and battery-powered devices.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n
Hold Current (Ih)<\/td>\n1.5 A<\/td>\n<\/tr>\n
Trip Current (It)<\/td>\n2.8 A<\/td>\n<\/tr>\n
Maximum Voltage Rating<\/td>\n12 VDC<\/td>\n<\/tr>\n
Maximum Fault Current<\/td>\n100 A<\/td>\n<\/tr>\n
Max Time to Trip<\/td>\n0.5 s at 8 A<\/td>\n<\/tr>\n
Initial Resistance (Ri min)<\/td>\n0.04 ohm<\/td>\n<\/tr>\n
Post-Trip Resistance (R1 max)<\/td>\n0.11 ohm<\/td>\n<\/tr>\n
\u529f\u7387\u8017\u6563<\/td>\n0.8 W (max)<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40 to 85 degC<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\n1812 (4.60 x 3.24 mm)<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • Resettable polymer PTC overcurrent protection<\/li>\n
  • Low initial resistance: 0.04 ohm minimum<\/li>\n
  • Compact 1812 surface-mount footprint<\/li>\n
  • CSA, TUV, and UL agency approvals<\/li>\n
  • Automatic reset after fault condition clears<\/li>\n
  • Compatible with high-volume SMT assembly<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Mobile electronics and battery protection<\/li>\n
    • Computer peripheral port protection<\/li>\n
    • Portable electronics overcurrent protection<\/li>\n
    • Game machine and multimedia devices<\/li>\n
    • Automotive low-voltage circuit protection<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The MINISMDC150F\/12-2 from Littelfuse is a polymer PTC resettable fuse (PolySwitch) from the miniSMD series with a 1.5 A hold current and 2.8 A trip current at 12 VDC. Packaged in a 1812 (4532 metric) surface-mount footprint, it provides resettable overcurrent protection for portable electronics, computers, and battery-powered devices. Key Specifications Hold Current […]<\/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],"tags":[2100],"chip_brand":[200],"class_list":["post-10759","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","tag-minismdc150f-12-2","chip_brand-littelfuse"],"acf":{"brief_explanation":"Resettable PTC fuse, 1.5A hold \/ 2.8A trip, 12V, 1812 SMD, PolySwitch miniSMD","date_code":"","package_case":"1812 (4.60 x 3.24 x 0.48 mm)","in_stock":12856,"datasheet":"https:\/\/www.littelfuse.com\/products\/polyswitch-resettable-pptc-devices\/surface-mount\/minismd\/minismdc150f-12-2","price":"$0.42 @ 1ku","product_introduction":"The MINISMDC150F\/12-2 from Littelfuse is a polymer positive temperature coefficient (PTC) resettable fuse from the miniSMD series. It provides 1.5 A hold current and trips at 2.8 A, protecting circuits from overcurrent conditions in 12 VDC maximum systems. Unlike traditional fuses, the PolySwitch device automatically resets when the fault condition is removed and the device cools, eliminating the need for replacement. The low initial resistance of 0.04 ohm minimizes voltage drop in normal operation. The 1812 surface-mount package is compatible with standard reflow soldering processes and is CSA, TUV, and UL approved.","working_principle":"The MINISMDC150F\/12-2 uses a polymer matrix loaded with conductive carbon particles. At normal operating currents below the hold current (1.5 A), the conductive particles form a low-resistance path through the device. When an overcurrent condition causes the device temperature to exceed the trip threshold (typically at 2.8 A or above), the polymer expands, separating the conductive chains and dramatically increasing the device resistance. This limits the fault current to a low leakage level. When the overcurrent condition is removed and the device cools, the polymer contracts and the conductive paths reform, restoring the low-resistance state. This resettable behavior eliminates the need for fuse replacement.","pin_description":"
      Terminal<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>Terminal 1<\/td>Passive<\/td>PTC terminal 1<\/td><\/tr>
      2<\/td>Terminal 2<\/td>Passive<\/td>PTC terminal 2<\/td><\/tr><\/table>","application_scenarios":"
      • Mobile phone and tablet battery overcurrent protection<\/li>
      • Computer USB and HDMI port current limiting<\/li>
      • Portable electronics speaker and motor protection<\/li>
      • Game machine and multimedia device circuit protection<\/li>
      • Automotive 12V low-voltage circuit resettable fusing<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        Littelfuse<\/td>MINISMDC200F\/12-2<\/td>1812<\/td>2.0A hold variant<\/td><\/tr>
        Littelfuse<\/td>MINISMDC075F\/12-2<\/td>1812<\/td>0.75A hold variant<\/td><\/tr>
        Bourns<\/td>MF-MSMF150-2<\/td>1812<\/td>1.5A PTC equivalent<\/td><\/tr>
        Eaton<\/td>PTS18112V150<\/td>1812<\/td>1.5A 12V PTC<\/td><\/tr>
        TE Connectivity<\/td>MINISMDC150F-2<\/td>1812<\/td>Raychem PTC equivalent<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts\/10759","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=10759"}],"version-history":[{"count":0,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts\/10759\/revisions"}],"wp:attachment":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/media?parent=10759"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/categories?post=10759"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/tags?post=10759"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=10759"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}