{"id":7425,"date":"2026-06-24T05:07:55","date_gmt":"2026-06-24T05:07:55","guid":{"rendered":"https:\/\/materialparts.com\/tlp627-2\/"},"modified":"2026-06-24T05:07:55","modified_gmt":"2026-06-24T05:07:55","slug":"tlp627-2","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/tlp627-2\/","title":{"rendered":"TLP627-2"},"content":{"rendered":"

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

The TLP627-2 from Toshiba is a dual-channel Darlington phototransistor photocoupler with 1000% minimum CTR, 5000Vrms isolation, and 300V collector-emitter voltage in a 8-pin DIP package.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n
\u6e20\u9053<\/td>\n2 (Dual)<\/td>\n<\/tr>\n
\u9694\u79bb\u7535\u538b<\/td>\n5000 Vrms<\/td>\n<\/tr>\n
CTR (min)<\/td>\n1000% @ IF=1mA<\/td>\n<\/tr>\n
Collector-Emitter Voltage<\/td>\n300 V<\/td>\n<\/tr>\n
Collector Current<\/td>\n100 mA<\/td>\n<\/tr>\n
LED Forward Voltage<\/td>\n1.3V typical @ IF=10mA<\/td>\n<\/tr>\n
Response Time<\/td>\n100 us typical (rise\/fall)<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-55\u00b0C to +100\u00b0C<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\nDIP-8<\/td>\n<\/tr>\n<\/table>\n

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    \n
  • Dual Darlington photocoupler with 1000% CTR for very low LED drive<\/li>\n
  • 300V collector-emitter and 5000Vrms isolation in DIP-8<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Industrial PLC output and appliance control with low LED drive current<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The TLP627-2 from Toshiba is a dual-channel Darlington phototransistor photocoupler with 1000% minimum CTR, 5000Vrms isolation, and 300V collector-emitter voltage in a 8-pin DIP package. Key Specifications Channels 2 (Dual) Isolation Voltage 5000 Vrms CTR (min) 1000% @ IF=1mA Collector-Emitter Voltage 300 V Collector Current 100 mA LED Forward Voltage 1.3V 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":[169],"class_list":["post-7425","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-interface-ics","chip_brand-toshiba"],"acf":{"brief_explanation":"Dual Darlington photocoupler, 1000% CTR, 300V, 5kVrms, DIP-8","date_code":"","package_case":"DIP-8 (9.40 x 6.50 x 3.90 mm)","in_stock":6200,"datasheet":"https:\/\/toshiba.semicon-storage.com\/us\/semiconductor\/product\/isolators\/isocouplers\/detail.TLP627.html","price":"$0.85 @ 1ku","product_introduction":"The TLP627-2 from Toshiba is a dual-channel Darlington phototransistor photocoupler providing 1000% minimum current transfer ratio at IF=1mA. The Darlington output stage (two cascaded phototransistors) provides the very high CTR needed for applications where the LED drive current is limited, such as microcontroller I\/O port direct drive without additional transistor buffering. The 300V collector-emitter voltage rating is suitable for driving triac gates, relay coils, and small solenoids directly from AC line-derived or industrial 24V DC supplies. The dual-channel configuration provides two independent optocouplers in a single 8-pin DIP package, saving board space compared to two single-channel devices. The 5000Vrms isolation voltage meets UL 1577 safety requirements for industrial and appliance applications.","working_principle":"The TLP627-2 operates as a dual Darlington phototransistor photocoupler. (1) Darlington Output: Each channel consists of an infrared LED optically coupled to a Darlington-connected phototransistor pair. The first phototransistor detects the LED light and its collector current drives the base of the second (output) transistor. The total current gain is the product of the individual gains, resulting in CTR values of 1000% or more. (2) High CTR: At IF=1mA, the Darlington output can sink 10mA or more (1000% CTR minimum). This means that a microcontroller I\/O pin directly driving the LED at 1-5mA can control loads requiring up to 50-100mA at the output. (3) Speed Trade-off: The Darlington connection introduces an additional pole in the frequency response, limiting the switching speed to approximately 100us. This is acceptable for relay and triac drive applications but not for high-speed digital signal isolation. (4) Saturation Voltage: The Darlington output has a higher saturation voltage (approximately 1.0-1.2V) compared to a single phototransistor (0.1-0.3V) due to the VCE(sat) of the first transistor plus the VBE of the second.","pin_description":"
      Pin<\/th>Name<\/th>Function<\/th><\/tr>
      1<\/td>Anode 1<\/td>Channel 1 LED anode<\/td><\/tr>
      2<\/td>Cathode 1<\/td>Channel 1 LED cathode<\/td><\/tr>
      3<\/td>NC<\/td>No connect<\/td><\/tr>
      4<\/td>Emitter 1<\/td>Channel 1 Darlington emitter<\/td><\/tr>
      5<\/td>Collector 1<\/td>Channel 1 Darlington collector<\/td><\/tr>
      6<\/td>NC<\/td>No connect<\/td><\/tr>
      7<\/td>Emitter 2<\/td>Channel 2 Darlington emitter<\/td><\/tr>
      8<\/td>Collector 2<\/td>Channel 2 Darlington collector<\/td><\/tr><\/table>","application_scenarios":"
      • Industrial PLC output with 1000% CTR for direct MCU LED drive<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        Toshiba<\/td>TLP627-4<\/td>DIP-16<\/td>Quad version<\/td><\/tr>
        Vishay<\/td>ILD615-3<\/td>DIP-8<\/td>Dual Darlington, similar<\/td><\/tr>
        onsemi<\/td>MOC8050<\/td>DIP-6<\/td>Single, 500% CTR<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/7425","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=7425"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/7425\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=7425"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=7425"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=7425"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=7425"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}