{"id":10352,"date":"2026-07-19T12:25:46","date_gmt":"2026-07-19T12:25:46","guid":{"rendered":"https:\/\/ic-vendor.com\/1-5smc400ca\/"},"modified":"2026-07-19T12:25:46","modified_gmt":"2026-07-19T12:25:46","slug":"1-5smc400ca","status":"publish","type":"post","link":"https:\/\/ic-vendor.com\/ar\/1-5smc400ca\/","title":{"rendered":"1.5SMC400CA"},"content":{"rendered":"

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

The 1.5SMC400CA is a 1500W bidirectional TVS diode from Littelfuse’s 1.5SMC series in a DO-214AB (SMC) surface-mount package. With a reverse standoff voltage of 342V and maximum clamping voltage of 548V, it provides high-energy transient suppression for high-voltage AC\/DC power circuits.<\/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
Reverse Standoff Voltage (Vr)<\/td>\n342V<\/td>\n<\/tr>\n
Breakdown Voltage Min<\/td>\n380V<\/td>\n<\/tr>\n
Breakdown Voltage Max<\/td>\n420V<\/td>\n<\/tr>\n
Clamping Voltage (Vc)<\/td>\n548V<\/td>\n<\/tr>\n
Peak Pulse Power (10\/1000\u03bcs)<\/td>\n1500W<\/td>\n<\/tr>\n
Peak Pulse Current (Ipp)<\/td>\n2.8A (10\/1000\u03bcs) \/ 3.7A<\/td>\n<\/tr>\n
Leakage Current (Ir)<\/td>\n<1\u03bcA<\/td>\n<\/tr>\n
\u0627\u0644\u0642\u0637\u0628\u064a\u0629<\/td>\nBidirectional<\/td>\n<\/tr>\n
\u0627\u0644\u062d\u0632\u0645\u0629<\/td>\nDO-214AB (SMC)<\/td>\n<\/tr>\n
\u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644<\/td>\n-65\u00b0C to +150\u00b0C<\/td>\n<\/tr>\n<\/table>\n

\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n
    \n
  • 1500W peak pulse power at 10\/1000\u03bcs<\/li>\n
  • Bidirectional \u2014 for AC line and DC bus protection<\/li>\n
  • Excellent clamping at 548V max<\/li>\n
  • IEC 61000-4-2 ESD 30kV<\/li>\n
  • Glass passivated junction<\/li>\n
  • Halogen-free, RoHS compliant<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • 380V AC three-phase power protection<\/li>\n
    • Industrial motor drive DC bus protection<\/li>\n
    • High-voltage inverter protection<\/li>\n
    • Telecom base station power equipment<\/li>\n
    • Renewable energy system DC link<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The 1.5SMC400CA is a 1500W bidirectional TVS diode from Littelfuse’s 1.5SMC series in a DO-214AB (SMC) surface-mount package. With a reverse standoff voltage of 342V and maximum clamping voltage of 548V, it provides high-energy transient suppression for high-voltage AC\/DC power circuits. Key Specifications Reverse Standoff Voltage (Vr) 342V Breakdown Voltage Min 380V Breakdown […]<\/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":[1629,1608,1607],"chip_brand":[200],"class_list":["post-10352","post","type-post","status-publish","format-standard","hentry","category-passive-components","tag-1-5smc400ca","tag-bidirectional","tag-tvs-diode","chip_brand-littelfuse"],"acf":{"brief_explanation":"TVS Diode 1500W Bi-Dir 342Vr 548Vc DO-214AB SMC, -65~150\u00b0C","date_code":"","package_case":"DO-214AB (SMC)","in_stock":5100,"datasheet":"https:\/\/www.littelfuse.com\/media?res=700095&download=1","price":"","product_introduction":"The 1.5SMC400CA is a 1500W bidirectional TVS diode from Littelfuse's 1.5SMC series, providing high-energy transient voltage suppression for high-voltage power circuits. With a reverse standoff voltage of 342V and maximum clamping voltage of 548V, it is designed for protecting 380V AC power systems, industrial motor drive DC buses, and high-voltage inverter circuits. The bidirectional configuration provides symmetrical clamping for both positive and negative transients.","working_principle":"Under normal voltage conditions below 342V, the 1.5SMC400CA presents very high impedance with leakage current below 1\u03bcA. When a transient voltage exceeds the breakdown voltage (380-420V), the avalanche junction rapidly conducts and clamps the voltage to 548V maximum at the rated peak pulse current. The bidirectional configuration uses two avalanche junctions in anti-series, providing symmetrical clamping for both polarities. After the transient event, the device automatically returns to its high-impedance blocking state.","pin_description":"
      Pin<\/th>Function<\/th><\/tr>
      1<\/td>Cathode (banded end)<\/td><\/tr>
      2<\/td>Anode<\/td><\/tr><\/table>

      Note: Bidirectional \u2014 no polarity distinction in operation.<\/p>","application_scenarios":"

      • 380V\/400V AC three-phase industrial power protection<\/li>
      • Motor drive and VFD DC bus (540V nominal) transient suppression<\/li>
      • Solar inverter DC link protection<\/li>
      • Telecom base station -48V rectifier output<\/li>
      • UPS and power conditioning equipment<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Vr<\/th>Pppm<\/th>Notes<\/th><\/tr>
        Littelfuse<\/td>SMCJ400CA<\/td>400V<\/td>1500W<\/td>Higher Vr option<\/td><\/tr>
        Vishay<\/td>1.5SMC400CA<\/td>342V<\/td>1500W<\/td>Direct cross<\/td><\/tr>
        Bourns<\/td>1.5SMC400CA<\/td>342V<\/td>1500W<\/td>Direct cross<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/posts\/10352","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/comments?post=10352"}],"version-history":[{"count":0,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/posts\/10352\/revisions"}],"wp:attachment":[{"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/media?parent=10352"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/categories?post=10352"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/tags?post=10352"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=10352"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}