{"id":7164,"date":"2026-06-23T05:52:31","date_gmt":"2026-06-23T05:52:31","guid":{"rendered":"https:\/\/materialparts.com\/tlp185gb-tplset-2\/"},"modified":"2026-06-23T05:52:31","modified_gmt":"2026-06-23T05:52:31","slug":"tlp185gb-tplset-2","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/tlp185gb-tplset-2\/","title":{"rendered":"TLP185(GB-TPL,SE(T"},"content":{"rendered":"

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The TLP185(GB-TPL,SE(T from Toshiba is a 3750Vrms photocoupler in a MFSOP-4 package. With a CTR of 50-300% and 110\u00b0C max operating temperature, it provides safe electrical isolation for industrial control and communication interfaces.<\/p>\n

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\u062c\u0647\u062f \u0627\u0644\u0639\u0632\u0644<\/td>\n3750 Vrms<\/td>\n<\/tr>\n
CTR (Current Transfer Ratio)<\/td>\n50% to 300%<\/td>\n<\/tr>\n
Forward Current<\/td>\n50 mA (max)<\/td>\n<\/tr>\n
CTR Rank (GB)<\/td>\n100% to 300%<\/td>\n<\/tr>\n
Bandwidth<\/td>\n1 Mbps (typical)<\/td>\n<\/tr>\n
\u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644<\/td>\n-55C to +110C<\/td>\n<\/tr>\n<\/table>\n

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    \n
  • 3750Vrms isolation voltage for safe control-to-load separation<\/li>\n
  • 50-300% CTR for reliable signal transfer<\/li>\n
  • MFSOP-4 compact surface-mount package<\/li>\n
  • 1Mbps data rate for communication isolation<\/li>\n
  • Wide -55C to +110C operating temperature range<\/li>\n
  • UL 1577 and VDE safety approvals<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • Industrial control system signal isolation<\/li>\n
    • Communication interface isolation (RS-232, RS-485)<\/li>\n
    • Power supply feedback loop isolation<\/li>\n
    • Motor drive logic isolation<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The TLP185(GB-TPL,SE(T from Toshiba is a 3750Vrms photocoupler in a MFSOP-4 package. With a CTR of 50-300% and 110\u00b0C max operating temperature, it provides safe electrical isolation for industrial control and communication interfaces. Key Specifications Isolation Voltage 3750 Vrms CTR (Current Transfer Ratio) 50% to 300% Forward Current 50 mA (max) CTR Rank […]<\/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-7164","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-interface-ics","chip_brand-toshiba"],"acf":{"brief_explanation":"Photocoupler, 3750Vrms isolation, CTR 50-300%, 1Mbps, MFSOP-4, industrial isolation","date_code":"","package_case":"MFSOP-4 (4.40 x 2.30 x 1.80 mm)","in_stock":12986,"datasheet":"https:\/\/toshiba.semicon-storage.com\/us\/semiconductor\/product\/optoelectronics\/detail\/TLP185.html","price":"$0.35 @ 1ku","product_introduction":"The TLP185(GB-TPL,SE(T from Toshiba is a high-isolation photocoupler consisting of a GaAlAs infrared LED optically coupled to a photo-transistor detector in a MFSOP-4 surface-mount package. The device provides 3750Vrms electrical isolation between input and output, ensuring safe signal transfer between high-voltage and low-voltage circuits. The GB CTR rank provides 100% to 300% current transfer ratio for reliable signal amplification. The MFSOP-4 (Miniature Flat Small Outline Package) offers a compact footprint with reduced creepage and clearance compared to DIP packages. The device supports data rates up to 1Mbps for communication interface isolation. UL 1577 and VDE 0884 safety approvals ensure compliance with regulatory requirements. The -55C to +110C operating temperature range supports industrial and automotive applications.","working_principle":"The TLP185 uses optical coupling between an LED and a photo-transistor. (1) LED Input: When forward current flows through the infrared LED (pins 1-2), it emits infrared radiation proportional to the current. The LED forward voltage is typically 1.2V at 10mA. (2) Optical Coupling: The infrared light crosses an optically transparent but electrically insulating dielectric within the package, providing 3750Vrms isolation. (3) Photo-Transistor Output: The photo-transistor (pins 3-4) detects the infrared radiation and generates a collector current proportional to the LED forward current. The ratio of output current to input current is the Current Transfer Ratio (CTR), which is 100-300% for the GB rank. (4) Signal Transfer: Digital signals are transferred by switching the LED current on and off. The photo-transistor saturates when the LED is on and turns off when the LED is off. The 1Mbps data rate is limited by the photo-transistor switching speed.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>Anode<\/td>Input<\/td>LED anode<\/td><\/tr>
      2<\/td>Cathode<\/td>Input<\/td>LED cathode<\/td><\/tr>
      3<\/td>Emitter<\/td>Output<\/td>Photo-transistor emitter<\/td><\/tr>
      4<\/td>Collector<\/td>Output<\/td>Photo-transistor collector<\/td><\/tr><\/table>","application_scenarios":"
      • Industrial control system signal isolation with 3750Vrms rating<\/li>
      • Communication interface isolation (RS-232, RS-485) at 1Mbps<\/li>
      • Power supply feedback loop isolation with GB CTR rank<\/li>
      • Motor drive logic isolation in MFSOP-4 compact package<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        Toshiba<\/td>TLP181GB<\/td>MFSOP-4<\/td>Similar, different CTR rank<\/td><\/tr>
        Vishay<\/td>SFH618A-3<\/td>DIP-4<\/td>Through-hole, similar CTR<\/td><\/tr>
        Everlight<\/td>EL817S1(B)(TU)-F<\/td>SOP-4<\/td>Direct alternative<\/td><\/tr>
        onsemi<\/td>FOD817C<\/td>SOP-4<\/td>Similar CTR rank<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/7164","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=7164"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/7164\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=7164"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=7164"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=7164"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=7164"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}