{"id":2492,"date":"2026-05-21T01:20:07","date_gmt":"2026-05-21T01:20:07","guid":{"rendered":"https:\/\/materialparts.com\/0453001-mr\/"},"modified":"2026-05-21T01:20:07","modified_gmt":"2026-05-21T01:20:07","slug":"0453001-mr","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/0453001-mr\/","title":{"rendered":"0453001.MR"},"content":{"rendered":"

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

The 0453001.MR from Littelfuse is a NANO2 very fast-acting surface-mount fuse rated at 1A, 125VAC\/VDC, with 78mOhm resistance, 50A interrupting rating at 125V, and a 2410 (6125 metric) package footprint.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n
\u5236\u9020\u5546<\/td>\nLittelfuse<\/td>\n<\/tr>\n
Series<\/td>\n453 NANO2<\/td>\n<\/tr>\n
Fuse Type<\/td>\nVery Fast-Acting<\/td>\n<\/tr>\n
Current Rating<\/td>\n1A<\/td>\n<\/tr>\n
Voltage Rating AC<\/td>\n125VAC<\/td>\n<\/tr>\n
Voltage Rating DC<\/td>\n125VDC<\/td>\n<\/tr>\n
Interrupting Rating<\/td>\n50A @ 125VAC\/VDC, 300A @ 32VDC<\/td>\n<\/tr>\n
Resistance<\/td>\n78mOhm<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\n2410 (6.1 x 2.69 x 2.69mm)<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-55C to +125C<\/td>\n<\/tr>\n
Approval<\/td>\nUL, cURus<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • Very fast-acting fuse characteristic<\/li>\n
  • NANO2 2410 surface-mount package<\/li>\n

125VAC and 125VDC voltage rating<\/li>\n
  • 300A interrupting rating at 32VDC<\/li>\n
  • Low resistance: 78mOhm<\/li>\n
  • UL and cURus recognized<\/li>\n
  • RoHS compliant<\/li>\n
  • Wide operating temperature: -55C to +125C<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Overcurrent protection in power supplies<\/li>\n
    • LED lighting drivers<\/li>\n
    • Consumer electronics<\/li>\n
    • Telecommunications equipment<\/li>\n
    • Industrial control systems<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The 0453001.MR from Littelfuse is a NANO2 very fast-acting surface-mount fuse rated at 1A, 125VAC\/VDC, with 78mOhm resistance, 50A interrupting rating at 125V, and a 2410 (6125 metric) package footprint. Key Specifications Manufacturer Littelfuse Series 453 NANO2 Fuse Type Very Fast-Acting Current Rating 1A Voltage Rating AC 125VAC Voltage Rating DC 125VDC Interrupting […]<\/p>\n","protected":false},"author":2,"featured_media":2776,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13,29],"tags":[],"chip_brand":[136],"class_list":["post-2492","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-integrated-circuits-ics","category-power-management-ics-pmic","chip_brand-vishay"],"acf":{"brief_explanation":"NANO2 SMD fuse, 1A, 125VAC\/VDC, very fast-acting, 78mOhm, 2410 package","date_code":"","package_case":"2410 (6.1 x 2.69 x 2.69mm) SMD","in_stock":1908,"datasheet":"https:\/\/www.littelfuse.com\/products\/fuses\/surface-mount-fuses\/nano2-smd-fuses\/453-series","price":"$0.83 @ 1ku","product_introduction":"The Littelfuse 0453001.MR is a very fast-acting surface-mount fuse from the 453 NANO2 series, designed for overcurrent protection in space-constrained applications. The 2410 package footprint provides a compact solution while maintaining a 125VAC\/VDC rating and 1A current capacity. The very fast-acting characteristic ensures rapid response to overcurrent conditions, protecting sensitive downstream components. With 78mOhm resistance, the fuse minimizes voltage drop and power dissipation in normal operation. The 50A interrupting rating at 125V and 300A at 32VDC provides safe fault clearing. The UL and cURus approvals ensure regulatory compliance for safety-critical applications.","working_principle":"The 0453001.MR operates as a single-use overcurrent protection device: 1) Normal Operation: At currents below the 1A rated value, the fuse element maintains a low resistance of 78mOhm, allowing normal circuit operation with minimal voltage drop. 2) Overcurrent Response: When current exceeds the fuse rating, the very fast-acting characteristic causes the fuse element to melt rapidly, interrupting the circuit before damage can occur to downstream components. The opening time decreases with increasing overcurrent (e.g., 210% of rating opens within 120s, 1000% opens within 20-150ms). 3) Fault Clearing: Once the fuse element melts, an arc may form momentarily but is quickly extinguished by the ceramic body filler material, safely clearing the fault within the interrupting rating limits.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>Terminal 1<\/td>Connection<\/td>First terminal of fuse element<\/td><\/tr>
      2<\/td>Terminal 2<\/td>Connection<\/td>Second terminal of fuse element<\/td><\/tr><\/table>","application_scenarios":"
      • Overcurrent protection in 125VAC\/VDC power supply outputs<\/li>
      • LED driver module short-circuit protection<\/li>
      • Telecom equipment port current limiting<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        Littelfuse<\/td>0453002.MR<\/td>2410<\/td>2A, same series<\/td><\/tr>
        Littelfuse<\/td>0451001.MR<\/td>2410<\/td>1A, 451 series (fast-acting)<\/td><\/tr>
        Bel Fuse<\/td>0ZCJ0010FF2E<\/td>2410<\/td>1A, 125V fast-acting SMD<\/td><\/tr>
        Schurter<\/td>USFA 1100<\/td>2410<\/td>1A, fast-acting SMD fuse<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/2492","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/comments?post=2492"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/2492\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media\/2776"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=2492"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=2492"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=2492"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=2492"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}