{"id":10821,"date":"2026-07-20T14:00:57","date_gmt":"2026-07-20T14:00:57","guid":{"rendered":"https:\/\/ic-vendor.com\/tcmt1100\/"},"modified":"2026-07-20T14:00:57","modified_gmt":"2026-07-20T14:00:57","slug":"tcmt1100","status":"publish","type":"post","link":"https:\/\/ic-vendor.com\/zh\/tcmt1100\/","title":{"rendered":"TCMT1100"},"content":{"rendered":"

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

The TCMT1100 from Vishay Semiconductors is a single-channel phototransistor output optocoupler in a 4-pin SSOP (half-pitch mini-flat) surface-mount package. Featuring a wide CTR range of 50% to 600%, 3750 VRMS isolation voltage, and 70 V CEO rating, it provides electrical isolation for signal transmission in programmable logic controllers, modems, and general industrial applications.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n
\u6e20\u9053<\/td>\n1<\/td>\n<\/tr>\n
\u8f93\u51fa\u7c7b\u578b<\/td>\nPhototransistor<\/td>\n<\/tr>\n
CTR<\/td>\n50% to 600% @ IF=5mA, VCE=5V<\/td>\n<\/tr>\n
\u9694\u79bb\u7535\u538b<\/td>\n3750 VRMS<\/td>\n<\/tr>\n
VCEO<\/td>\n70 V<\/td>\n<\/tr>\n
Forward Voltage (VF)<\/td>\n1.25 V typical, 1.6 V max @ IF=50mA<\/td>\n<\/tr>\n
Collector Current<\/td>\n50 mA max<\/td>\n<\/tr>\n
Forward Current (IF)<\/td>\n60 mA max<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\nSSOP-4 (Half-Pitch Mini-Flat)<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40 to +100 degC<\/td>\n<\/tr>\n
Coupling Capacance<\/td>\n0.3 pF typical<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • Low-profile half-pitch mini-flat package<\/li>\n
  • 3750 VRMS AC isolation test voltage<\/li>\n
  • Ultra-low coupling capacitance of 0.3 pF<\/li>\n
  • CTR grouped for application flexibility<\/li>\n
  • Low temperature coefficient of CTR<\/li>\n
  • UL1577, VDE 0884-5, CSA, BSI, FIMKO approved<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Programmable logic controllers (PLC)<\/li>\n
    • Modems and communication interfaces<\/li>\n
    • Industrial control signal isolation<\/li>\n
    • Power supply feedback isolation<\/li>\n
    • General-purpose digital signal isolation<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The TCMT1100 from Vishay Semiconductors is a single-channel phototransistor output optocoupler in a 4-pin SSOP (half-pitch mini-flat) surface-mount package. Featuring a wide CTR range of 50% to 600%, 3750 VRMS isolation voltage, and 70 V CEO rating, it provides electrical isolation for signal transmission in programmable logic controllers, modems, and general industrial applications. […]<\/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":[57,13],"tags":[2162],"chip_brand":[136],"class_list":["post-10821","post","type-post","status-publish","format-standard","hentry","category-insulated-gate-bipolar-transistors-igbt","category-integrated-circuits-ics","tag-tcmt1100","chip_brand-vishay"],"acf":{"brief_explanation":"1-ch phototransistor optocoupler, CTR 50-600%, 3750Vrms, SSOP-4, 70V VCEO, UL\/VDE approved","date_code":"","package_case":"SSOP-4 \/ Mini-Flat (3.95 x 2.35 x 2.0 mm)","in_stock":13415,"datasheet":"https:\/\/www.vishay.com\/docs\/83510\/tcmt1100.pdf","price":"$0.25 @ 1ku","product_introduction":"The TCMT1100 from Vishay Semiconductors is a single-channel phototransistor output optocoupler in a compact SSOP-4 (half-pitch mini-flat) surface-mount package. It consists of a gallium arsenide infrared-emitting diode optically coupled to a silicon NPN phototransistor. With a CTR range of 50% to 600% and 3750 VRMS isolation voltage, it provides reliable signal isolation for industrial and communications applications. The ultra-low coupling capacitance of 0.3 pF minimizes noise coupling between input and output circuits. The package design provides a fixed distance between input and output on one leadframe for highest safety requirements. UL1577, VDE 0884-5, CSA, BSI, and FIMKO approved.","working_principle":"The TCMT1100 operates by converting an electrical input signal to infrared light via the GaAs LED, then converting the light back to an electrical signal via the phototransistor. When forward current flows through the LED (IF), it emits infrared light that is detected by the phototransistor base region, generating a photocurrent that drives the transistor. The CTR (Current Transfer Ratio) of 50% to 600% means the output collector current can be 0.5 to 6 times the input LED current at IF=5 mA. The 3750 VRMS isolation is provided by the physical separation between the LED and phototransistor within the package, with creepage and clearance distances designed to meet safety standards.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>Anode<\/td>Input<\/td>LED anode - connect to drive signal<\/td><\/tr>
      2<\/td>Cathode<\/td>Input<\/td>LED cathode - connect to ground<\/td><\/tr>
      3<\/td>Emitter<\/td>Output<\/td>Phototransistor emitter<\/td><\/tr>
      4<\/td>Collector<\/td>Output<\/td>Phototransistor collector<\/td><\/tr><\/table>","application_scenarios":"
      • PLC digital I\/O signal isolation<\/li>
      • Modem line-side interface isolation<\/li>
      • SMPS feedback loop error signal isolation<\/li>
      • Industrial sensor signal conditioning isolation<\/li>
      • Motor drive logic-to-power interface isolation<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        Vishay<\/td>TCMT1102<\/td>SSOP-4<\/td>CTR 63-125% tighter range<\/td><\/tr>
        Vishay<\/td>TCMT1103<\/td>SSOP-4<\/td>CTR 100-200% for logic drive<\/td><\/tr>
        Sharp<\/td>PC817X2CIP0F<\/td>DIP-4<\/td>Through-hole equivalent<\/td><\/tr>
        Everlight<\/td>EL817S<\/td>DIP-4<\/td>Through-hole equivalent<\/td><\/tr>
        ONsemi<\/td>HCPL-817<\/td>DIP-4<\/td>Through-hole equivalent<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts\/10821","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/comments?post=10821"}],"version-history":[{"count":0,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts\/10821\/revisions"}],"wp:attachment":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/media?parent=10821"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/categories?post=10821"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/tags?post=10821"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=10821"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}