{"id":7454,"date":"2026-06-24T07:00:56","date_gmt":"2026-06-24T07:00:56","guid":{"rendered":"https:\/\/materialparts.com\/tfdu4101-tr3\/"},"modified":"2026-06-24T07:00:56","modified_gmt":"2026-06-24T07:00:56","slug":"tfdu4101-tr3","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/tfdu4101-tr3\/","title":{"rendered":"TFDU4101-TR3"},"content":{"rendered":"

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

The TFDU4101-TR3 from Vishay Semiconductors is an infrared transceiver module compliant with the IrDA standard, supporting SIR data rates up to 115.2 kbit\/s with link distances up to 1 meter. Combining a PIN photodiode, IRED emitter, and control IC, it provides complete IrDA physical layer functionality in a compact surface-mount package.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n
\u6570\u636e\u901f\u7387<\/td>\nUp to 115.2 kbit\/s (SIR)<\/td>\n<\/tr>\n
Link Distance<\/td>\nUp to 1 m (IrDA standard)<\/td>\n<\/tr>\n
\u7535\u6e90\u7535\u538b<\/td>\n2.4V to 3.6V<\/td>\n<\/tr>\n
\u5173\u673a\u7535\u6d41<\/td>\nLess than 1 \u03bcA<\/td>\n<\/tr>\n
Interface<\/td>\nIrDA SIR compatible<\/td>\n<\/tr>\n
Wavelength<\/td>\n875 nm (typical)<\/td>\n<\/tr>\n
\u89c6\u89d2<\/td>\n\u00b115\u00b0 (minimum)<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\nSMD transceiver module<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-25\u00b0C to +85\u00b0C<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • IrDA physical layer specification compliant for SIR up to 115.2 kbit\/s<\/li>\n
  • Standard IrDA link distance of 1 meter<\/li>\n
  • Low power consumption with less than 1\u03bcA shutdown current<\/li>\n
  • Integrated PIN photodiode, IRED emitter, and control IC<\/li>\n
  • Surface-mount package for automated assembly<\/li>\n
  • RoHS compliant construction<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Short-distance wireless data transfer between portable devices<\/li>\n
    • Point-of-sale terminal infrared communication<\/li>\n
    • Industrial data collection and inventory tracking<\/li>\n
    • Medical device data download and programming<\/li>\n
    • Environments where RF communication is problematic<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The TFDU4101-TR3 from Vishay Semiconductors is an infrared transceiver module compliant with the IrDA standard, supporting SIR data rates up to 115.2 kbit\/s with link distances up to 1 meter. Combining a PIN photodiode, IRED emitter, and control IC, it provides complete IrDA physical layer functionality in a compact surface-mount package. Key Specifications […]<\/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-7454","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-interface-ics","chip_brand-vishay"],"acf":{"brief_explanation":"IrDA SIR infrared transceiver, 115.2kbit\/s, 1m range, 2.4-3.6V, SMD module","date_code":"","package_case":"SMD transceiver module","in_stock":3789,"datasheet":"https:\/\/www.vishay.com\/docs\/81288\/tfdu4101.pdf","price":".85 @ 1ku","product_introduction":"The TFDU4101-TR3 from Vishay Semiconductors is a complete infrared transceiver module designed for IrDA-compliant short-range wireless communication. It supports Serial Infrared (SIR) data rates up to 115.2 kbit\/s with a standard IrDA link distance of 1 meter. The module integrates a PIN photodiode for reception, an infrared emitting diode (IRED) for transmission, and a low-power control IC that manages the transmit\/receive functions. Operating from 2.4V to 3.6V supply, the device draws less than 1\u03bcA in shutdown mode, making it suitable for battery-powered portable devices. The surface-mount package enables automated PCB assembly while meeting all IrDA physical layer specifications.","working_principle":"The TFDU4101-TR3 operates through three integrated subsystems. (1) The transmitter section accepts TTL-level data on the TXD pin and drives the internal IRED emitter at 875nm wavelength. When TXD goes low, the control IC activates the IRED driver, generating a modulated infrared pulse at the IrDA-specified intensity. An external resistor (R1) can be used to limit the IRED current below the IrDA specification maximum. (2) The receiver section uses the PIN photodiode to detect incoming 875nm infrared signals, with the control IC amplifying and shaping the received signal to produce a clean TTL-level output on the RXD pin. (3) The shutdown control (SD pin) disables both transmitter and receiver when pulled high, reducing current consumption to less than 1\u03bcA for battery conservation in portable devices.","pin_description":"
      Pin<\/th>Name<\/th>Function<\/th><\/tr>
      1<\/td>IRED Anode<\/td>Infrared emitter anode (connect to supply or battery)<\/td><\/tr>
      2<\/td>IRED Cathode<\/td>Infrared emitter cathode (internally driven)<\/td><\/tr>
      3<\/td>TXD<\/td>Transmit data input (TTL level, active low)<\/td><\/tr>
      4<\/td>RXD<\/td>Receive data output (TTL level, active low)<\/td><\/tr>
      5<\/td>SD<\/td>Shutdown control (active high, ground for normal operation)<\/td><\/tr>
      6<\/td>VCC1<\/td>Supply voltage for receiver (2.4-3.6V)<\/td><\/tr>
      7<\/td>NC<\/td>No connection<\/td><\/tr>
      8<\/td>GND<\/td>Ground<\/td><\/tr><\/table>","application_scenarios":"
      • Portable device data synchronization via IrDA infrared link (PDAs, calculators)<\/li>
      • Point-of-sale terminal infrared receipt printer communication<\/li>
      • Industrial barcode scanner and data collection terminal interfaces<\/li>
      • Medical device data download from patient monitoring equipment<\/li>
      • RF-restricted environments where infrared provides a compliant alternative<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>Key Difference<\/th><\/tr>
        TFDU4301-TR3<\/td>Vishay<\/td>FIR 4Mbit\/s version<\/td><\/tr>
        TFDU4100-TR3<\/td>Vishay<\/td>Similar SIR, different package<\/td><\/tr>
        HSDL-3201<\/td>Broadcom<\/td>IrDA SIR, similar footprint<\/td><\/tr>
        GP2S700HCP<\/td>Sharp<\/td>IrDA transceiver module<\/td><\/tr>
        TFBS4711-TR3<\/td>Vishay<\/td>IrDA FIR 4Mbit\/s, low profile<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/7454","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=7454"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/7454\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=7454"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=7454"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=7454"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=7454"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}