{"id":7465,"date":"2026-06-24T07:10:02","date_gmt":"2026-06-24T07:10:02","guid":{"rendered":"https:\/\/materialparts.com\/smlvt3v3\/"},"modified":"2026-06-24T07:10:02","modified_gmt":"2026-06-24T07:10:02","slug":"smlvt3v3","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/smlvt3v3\/","title":{"rendered":"SMLVT3V3"},"content":{"rendered":"

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

The SMLVT3V3 from STMicroelectronics is a 3.3V unidirectional TVS (Transil) diode in an SML package, designed for ESD and surge protection of sensitive circuits. With 400W peak pulse power capability and low clamping voltage, it provides robust transient protection for automotive and industrial applications.<\/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
\u0627\u0644\u0646\u0648\u0639<\/td>\nUnidirectional TVS<\/td>\n<\/tr>\n
Standoff Voltage (VRWM)<\/td>\n3.3 V<\/td>\n<\/tr>\n
Breakdown Voltage (VBR)<\/td>\n3.7 V min<\/td>\n<\/tr>\n
Clamping Voltage (VC)<\/td>\n6.0 V max @ IPP=7A<\/td>\n<\/tr>\n
Peak Pulse Power (PPP)<\/td>\n400 W (10\/1000\u03bcs)<\/td>\n<\/tr>\n
Leakage Current<\/td>\n1 \u03bcA max @ VRWM<\/td>\n<\/tr>\n
\u0627\u0644\u062d\u0632\u0645\u0629<\/td>\nSML (DO-219AB)<\/td>\n<\/tr>\n
\u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644<\/td>\n-40\u00b0C to +150\u00b0C (Tj)<\/td>\n<\/tr>\n<\/table>\n

\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n
    \n
  • Low profile SML package for high-density PCB layouts<\/li>\n
  • 400W peak pulse power dissipation for robust surge protection<\/li>\n
  • Low clamping voltage protects downstream components<\/li>\n
  • Unidirectional protection for DC circuits<\/li>\n
  • Low leakage current minimizes power consumption<\/li>\n
  • ESD protection exceeding IEC 61000-4-2 requirements<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • ESD protection for 3.3V digital I\/O lines<\/li>\n
    • Surge protection for automotive CAN\/LIN bus<\/li>\n
    • Power supply input transient protection<\/li>\n
    • Sensor line protection in industrial systems<\/li>\n
    • Consumer electronics interface protection<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The SMLVT3V3 from STMicroelectronics is a 3.3V unidirectional TVS (Transil) diode in an SML package, designed for ESD and surge protection of sensitive circuits. With 400W peak pulse power capability and low clamping voltage, it provides robust transient protection for automotive and industrial applications. Key Specifications Type Unidirectional TVS Standoff Voltage (VRWM) 3.3 […]<\/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":[13,56],"tags":[],"chip_brand":[142],"class_list":["post-7465","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-mosfets","chip_brand-st"],"acf":{"brief_explanation":"3.3V unidirectional TVS diode, 400W, low clamping, SML package","date_code":"","package_case":"SML (DO-219AB)","in_stock":11234,"datasheet":"https:\/\/www.st.com\/en\/protection-devices\/smlvt3v3.html","price":"\/tmp\/tmp3xrpk70n.sh.12 @ 1ku","product_introduction":"The SMLVT3V3 from STMicroelectronics is a unidirectional Transil TVS diode designed to protect sensitive automotive and industrial circuits against ESD and electrical surges. Rated for a standoff voltage of 3.3V, it provides low clamping voltage protection (6V max at 7A peak current) for 3.3V logic circuits and communication lines. The device handles up to 400W peak pulse power in the 10\/1000\u03bcs waveform, exceeding IEC 61000-4-2 ESD protection requirements. The low-profile SML (DO-219AB) package enables high-density PCB designs while maintaining excellent thermal performance.","working_principle":"The SMLVT3V3 operates as an avalanche breakdown protection device. (1) Under normal operating conditions (voltage below 3.3V VRWM), the TVS diode presents a very high impedance with leakage current below 1\u03bcA, having negligible effect on the protected circuit. (2) When a transient voltage exceeds the breakdown voltage (3.7V minimum), the device rapidly enters avalanche breakdown, providing a low-impedance path that diverts surge current away from the protected circuit. (3) The clamping action limits the voltage across the protected line to the clamping voltage (6V max at 7A), absorbing the transient energy within the device. After the transient subsides, the TVS diode returns to its high-impedance state, allowing normal circuit operation to resume.","pin_description":"
      Pin<\/th>Name<\/th>Function<\/th><\/tr>
      1<\/td>Cathode<\/td>Positive terminal (to supply line)<\/td><\/tr>
      2<\/td>Anode<\/td>Negative terminal (to ground)<\/td><\/tr><\/table>","application_scenarios":"
      • ESD protection for 3.3V microcontroller I\/O pins and communication lines<\/li>
      • Automotive CAN and LIN bus transient voltage suppression<\/li>
      • Power supply input surge protection in battery-powered devices<\/li>
      • Sensor signal line protection against ESD and EFT in industrial systems<\/li>
      • USB and HDMI interface transient protection<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>Key Difference<\/th><\/tr>
        SMLVT3V3A<\/td>STMicroelectronics<\/td>Bi-directional version<\/td><\/tr>
        SMLVT5V0<\/td>STMicroelectronics<\/td>5.0V standoff voltage version<\/td><\/tr>
        ESD5V0S1B<\/td>STMicroelectronics<\/td>5V TVS, smaller package<\/td><\/tr>
        TDXP33C-S<\/td>onsemi<\/td>3.3V TVS, SOD-523<\/td><\/tr>
        PESD5V0S1BA<\/td>Nexperia<\/td>5V ESD protection, SOD-323<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/7465","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=7465"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/7465\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=7465"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=7465"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=7465"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=7465"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}