{"id":7861,"date":"2026-06-28T03:00:51","date_gmt":"2026-06-28T03:00:51","guid":{"rendered":"https:\/\/ic-vendor.com\/vo618a-3x017t\/"},"modified":"2026-06-28T10:20:03","modified_gmt":"2026-06-28T10:20:03","slug":"vo618a-3x017t","status":"publish","type":"post","link":"https:\/\/ic-vendor.com\/ar\/vo618a-3x017t\/","title":{"rendered":"VO618A-3X017T"},"content":{"rendered":"

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

The VO618A-3X017T is a zero-crossing triac driver optocoupler from Vishay with 600V blocking voltage, 300mA on-state current, and 5300VRMS isolation in a DIP-6 package.<\/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\n
Output Device<\/td>\nZero-crossing triac driver<\/td>\n<\/tr>\n
Peak Blocking Voltage<\/td>\n600V<\/td>\n<\/tr>\n
On-State Current (RMS)<\/td>\n300mA max<\/td>\n<\/tr>\n
LED Trigger Current (IFT)<\/td>\n5mA max (VO618A-3 grade)<\/td>\n<\/tr>\n
LED Forward Voltage<\/td>\n1.25V typical at 10mA<\/td>\n<\/tr>\n
\u062c\u0647\u062f \u0627\u0644\u0639\u0632\u0644<\/td>\n5300 VRMS<\/td>\n<\/tr>\n
Zero-Cross Inhibit Voltage<\/td>\n20V max<\/td>\n<\/tr>\n
dv\/dt Immunity<\/td>\n10V\/\u00b5s min<\/td>\n<\/tr>\n
CTR (current transfer)<\/td>\nN\/A (triac output)<\/td>\n<\/tr>\n
\u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644<\/td>\n-40 \u062f\u0631\u062c\u0629 \u0645\u0626\u0648\u064a\u0629 \u0625\u0644\u0649 +85 \u062f\u0631\u062c\u0629 \u0645\u0626\u0648\u064a\u0629<\/td>\n<\/tr>\n
\u0627\u0644\u062d\u0632\u0645\u0629<\/td>\nDIP-6 (7.62 x 6.35mm)<\/td>\n<\/tr>\n<\/table>\n

\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n
    \n
  • Zero-crossing detector for reduced EMI and inrush current<\/li>\n
  • 600V peak blocking voltage for 240VAC mains<\/li>\n
  • 5300VRMS isolation between input and output<\/li>\n
  • 5mA max trigger current (grade 3) for MCU compatibility<\/li>\n
  • High dv\/dt immunity: 10V\/\u00b5s minimum<\/li>\n
  • UL 1577 and IEC 60747-5-5 approved<\/li>\n
  • Direct gate drive for power triacs up to 25A<\/li>\n
  • Vishay high-reliability optocoupler construction<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • Solid-state relay (SSR) circuits<\/li>\n
    • AC motor on\/off control<\/li>\n
    • AC lamp and heater switching<\/li>\n
    • Home appliance power control<\/li>\n
    • Industrial process control<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The VO618A-3X017T is a zero-crossing triac driver optocoupler from Vishay with 600V blocking voltage, 300mA on-state current, and 5300VRMS isolation in a DIP-6 package. Key Specifications Output Device Zero-crossing triac driver Peak Blocking Voltage 600V On-State Current (RMS) 300mA max LED Trigger Current (IFT) 5mA max (VO618A-3 grade) LED Forward Voltage 1.25V typical […]<\/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":[13,20],"tags":[],"chip_brand":[136],"class_list":["post-7861","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-interface-ics","chip_brand-vishay"],"acf":{"brief_explanation":"Zero-crossing triac driver optocoupler, 600V, 5300VRMS isolation, 5mA IFT, DIP-6","date_code":"","package_case":"DIP-6 (7.62 x 6.35 x 5.08mm, 2.54mm pitch)","in_stock":6750,"datasheet":"https:\/\/www.vishay.com\/docs\/81858\/vo618a.pdf","price":"$0.95 @ 1ku","product_introduction":"The VO618A-3X017T is a zero-crossing triac driver optocoupler from Vishay designed for AC power control applications. It combines a GaAs infrared LED optically coupled to a zero-crossing triac driver chip with 600V peak blocking voltage, suitable for 240VAC mains operation. The zero-crossing detector ensures the triac turns on only when the AC voltage is near zero, reducing inrush current and EMI. The grade 3 variant has a maximum LED trigger current of 5mA, compatible with MCU GPIO outputs. The 5300VRMS isolation voltage provides safe galvanic separation between control and power circuits. The device directly drives the gate of external power triacs rated up to 25A.","working_principle":"The VO618A-3X017T consists of a GaAs IR LED optically coupled to a silicon detector chip with integrated zero-crossing detector and triac driver. When the LED is forward-biased, infrared radiation activates the detector. The zero-crossing circuit monitors the voltage across the output terminals; when this voltage is below the inhibit threshold (\u226420V), the detector triggers the driver triac, which in turn provides gate current to the external power triac. When the AC line voltage exceeds 20V, the zero-crossing detector prevents triggering, waiting until the next zero crossing. This synchronized turn-on minimizes the rate of current change (di\/dt) through the load, reducing electromagnetic interference and inrush current stress on the power triac. The 600V blocking capability allows direct connection to 240VAC mains with appropriate safety margins. The 5300VRMS isolation is achieved through optical coupling with no electrical path between LED and detector, ensuring safe separation even during high-voltage fault conditions.","pin_description":"\n
      Pin<\/th>Name<\/th>Type<\/th>Description<\/th><\/tr>\n
      1<\/td>Anode<\/td>Input<\/td>LED anode (connect via resistor to MCU)<\/td><\/tr>\n
      2<\/td>Cathode<\/td>Input<\/td>LED cathode (connect to MCU GND)<\/td><\/tr>\n
      3<\/td>NC<\/td>\u2014<\/td>No connect<\/td><\/tr>\n
      4<\/td>Main Terminal 2<\/td>Output<\/td>Triac driver MT2 (connect to AC line via resistor)<\/td><\/tr>\n
      5<\/td>NC<\/td>\u2014<\/td>No connect<\/td><\/tr>\n
      6<\/td>Main Terminal 1<\/td>Output<\/td>Triac driver MT1 (connect to power triac gate)<\/td><\/tr>\n<\/table>","application_scenarios":"
        \n
      • Solid-State Relays:<\/strong> Zero-crossing switching and 600V blocking create robust SSR for 240VAC load control from MCU logic<\/li>\n
      • Home Appliances:<\/strong> 5mA trigger current directly driven by MCU; zero-crossing extends relay life by reducing inrush<\/li>\n
      • Heater Control:<\/strong> Zero-crossing eliminates EMI that could interfere with temperature measurement circuits<\/li>\n
      • Industrial Power:<\/strong> 5300VRMS isolation protects control electronics from mains voltage faults<\/li>\n
      • Lamp Switching:<\/strong> Zero-crossing turn-on prevents thermal shock on incandescent lamps, extending lamp life<\/li>\n<\/ul>","alternative_models":"\n
        Model<\/th>Manufacturer<\/th>Key Difference<\/th>Package<\/th>Specs<\/th><\/tr>\n
        MOC3063M<\/td>onsemi<\/td>Zero-crossing, 600V, 5mA IFT, DIP-6<\/td>-<\/td>-<\/td><\/tr>\n
        VOM160GTR<\/td>Vishay<\/td>Zero-crossing, 600V, SMD package<\/td>-<\/td>-<\/td><\/tr>\n
        MOC3083M<\/td>onsemi<\/td>Zero-crossing, 800V blocking<\/td>-<\/td>-<\/td><\/tr>\n
        VO2223A<\/td>Vishay<\/td>Zero-crossing with integrated power triac (0.9A)<\/td>-<\/td>-<\/td><\/tr>\n
        MOC3023M<\/td>onsemi<\/td>Non-zero-crossing, 400V, phase-angle control<\/td>-<\/td>-<\/td><\/tr>\n<\/table>"},"_links":{"self":[{"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/posts\/7861","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=7861"}],"version-history":[{"count":0,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/posts\/7861\/revisions"}],"wp:attachment":[{"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/media?parent=7861"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/categories?post=7861"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/tags?post=7861"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=7861"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}