{"id":9085,"date":"2026-07-02T10:52:40","date_gmt":"2026-07-02T10:52:40","guid":{"rendered":"https:\/\/materialparts.com\/vn5r003h-e\/"},"modified":"2026-07-03T08:03:33","modified_gmt":"2026-07-03T08:03:33","slug":"vn5r003h-e","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/vn5r003h-e\/","title":{"rendered":"VN5R003H-E"},"content":{"rendered":"

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

The STMicroelectronics VN5R003H-E is a 3 m\u03a9 reverse battery protection switch built with VIPower technology. Designed for automotive electronic module protection, it automatically connects the module supply when battery polarity is correct and disconnects during reverse polarity conditions, with an ultra-low 3 m\u03a9 on-state resistance.<\/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
\u0627\u0644\u0648\u0638\u064a\u0641\u0629<\/td>\nReverse Battery Protection<\/td>\n<\/tr>\n
R\u062a\u0634\u063a\u064a\u0644<\/sub><\/td>\n3 m\u03a9<\/td>\n<\/tr>\n
\u0646\u0637\u0627\u0642 \u062c\u0647\u062f \u0627\u0644\u0625\u0645\u062f\u0627\u062f<\/td>\n-16 V to 28 V (operating)<\/td>\n<\/tr>\n
Max Supply Voltage<\/td>\n41 V<\/td>\n<\/tr>\n
Control Pin<\/td>\n\u0641\u064a<\/td>\n<\/tr>\n
\u0627\u0644\u062d\u0632\u0645\u0629<\/td>\nHPAK (TO-252 6L)<\/td>\n<\/tr>\n
Grade<\/td>\nAutomotive<\/td>\n<\/tr>\n<\/table>\n

\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n
    \n
  • Ultra-low 3 m\u03a9 on-state resistance<\/li>\n
  • Automatic switch-off on negative input voltage<\/li>\n
  • ESD protection<\/li>\n
  • Optimized electromagnetic emissions<\/li>\n
  • Very low electromagnetic susceptibility<\/li>\n
  • Compliant with European directive 2002\/95\/EC<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • Reverse battery protection for automotive ECUs<\/li>\n
    • Electronic control unit supply protection<\/li>\n
    • Power distribution module protection<\/li>\n
    • Battery management system input protection<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The STMicroelectronics VN5R003H-E is a 3 m\u03a9 reverse battery protection switch built with VIPower technology. Designed for automotive electronic module protection, it automatically connects the module supply when battery polarity is correct and disconnects during reverse polarity conditions, with an ultra-low 3 m\u03a9 on-state resistance. Key Specifications Function Reverse Battery Protection RON 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":[13,29],"tags":[664],"chip_brand":[142],"class_list":["post-9085","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-power-management-ics-pmic","tag-vn5r003h-e","chip_brand-st"],"acf":{"brief_explanation":"3m\u03a9 reverse battery protection switch, -16V to 28V, VIPower, HPAK (TO-252 6L)","date_code":"","package_case":"HPAK (TO-252 6L) (6.5 x 5.0 x 1.2 mm)","in_stock":4286,"datasheet":"https:\/\/www.st.com\/resource\/en\/datasheet\/vn5r003h-e.pdf","price":"$1.59 @ 500u","product_introduction":"The STMicroelectronics VN5R003H-E is a specialized reverse battery protection device built using VIPower technology, designed to protect automotive electronic modules from damage caused by reverse battery connection. Unlike conventional Schottky diode solutions that dissipate significant power (typically 0.3-0.5 V drop), the VN5R003H-E uses an N-channel MOSFET with a control circuit to achieve an ultra-low on-state resistance of just 3 m\u03a9. At a typical automotive current of 10 A, this results in only 30 mV of voltage drop and 0.3 W of power dissipation, compared to 5 W with a diode solution. The device automatically turns on when the battery polarity is correct (IN voltage negative relative to Drain) and turns off when reverse polarity is detected, protecting downstream electronics.","working_principle":"The VN5R003H-E operates as an intelligent reverse polarity protection switch. The device has three terminals: Drain (connected to battery), Source (connected to the protected module), and IN (control). When battery polarity is correct, the IN pin voltage is negative relative to the Drain, which causes the internal driver to turn on the N-channel MOSFET, connecting the battery to the module through the ultra-low 3 m\u03a9 channel. If the battery is connected in reverse, the Drain voltage becomes negative relative to IN, and the device automatically turns off, blocking reverse current flow. When IN is left open (floating), the device enters an OFF state and behaves like a power diode between Source and Drain, providing passive protection. The internal ESD protection and electromagnetic optimization ensure reliable operation in the harsh automotive electrical environment.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>SOURCE<\/td>Output<\/td>Protected module supply<\/td><\/tr>
      2<\/td>SOURCE<\/td>Output<\/td>Protected module supply<\/td><\/tr>
      3<\/td>IN<\/td>Input<\/td>Control input<\/td><\/tr>
      4<\/td>DRAIN<\/td>Input<\/td>Battery connection<\/td><\/tr>
      5<\/td>NC<\/td>-<\/td>Not connected<\/td><\/tr>
      6<\/td>SOURCE<\/td>Output<\/td>Protected module supply<\/td><\/tr>
      7<\/td>SOURCE<\/td>Output<\/td>Protected module supply<\/td><\/tr>
      TAB<\/td>DRAIN<\/td>Input<\/td>Battery connection (thermal pad)<\/td><\/tr><\/table>","application_scenarios":"
      • Reverse battery protection for automotive ECU modules<\/li>
      • Power distribution unit input protection<\/li>
      • Battery management system reverse polarity guard<\/li>
      • Replacing Schottky diodes in high-current automotive rails<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        ST<\/td>VN5R003HTR-E<\/td>TO-252 6L<\/td>Tape & reel version<\/td><\/tr>
        Infineon<\/td>BTN8983TA<\/td>TO-263-7<\/td>Alternative reverse protection<\/td><\/tr>
        onsemi<\/td>NCP4586<\/td>DFN-8<\/td>Low RDS(on) load switch<\/td><\/tr>
        TI<\/td>TPS1H100AQPWPRQ1<\/td>HTSSOP-16<\/td>Smart high-side switch<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/9085","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=9085"}],"version-history":[{"count":1,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/9085\/revisions"}],"predecessor-version":[{"id":9098,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/9085\/revisions\/9098"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=9085"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=9085"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=9085"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=9085"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}