{"id":5451,"date":"2026-06-10T02:14:28","date_gmt":"2026-06-10T02:14:28","guid":{"rendered":"https:\/\/materialparts.com\/nud3112dmt1g\/"},"modified":"2026-06-10T02:14:28","modified_gmt":"2026-06-10T02:14:28","slug":"nud3112dmt1g","status":"publish","type":"post","link":"https:\/\/materialparts.com\/es\/nud3112dmt1g\/","title":{"rendered":"NUD3112DMT1G"},"content":{"rendered":"

Productos<\/h2>\n

The NUD3112DMT1G from onsemi is an integrated relay and inductive load driver in a 6-pin SC-74 (SOT-457) package. It integrates an N-channel MOSFET switch with ESD protection and Zener clamp, eliminating the need for external freewheeling diodes when driving inductive loads such as 12V relay coils up to 6W.<\/p>\n

Especificaciones<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Funci\u00f3n<\/td>\nInductive Load Driver \/ Relay Driver<\/td>\n<\/tr>\n
Number of Drivers<\/td>\n2<\/td>\n<\/tr>\n
Maximum VCC<\/td>\n14V<\/td>\n<\/tr>\n
Corriente de salida<\/td>\n300-400 mA per driver<\/td>\n<\/tr>\n
RDS(ON)<\/td>\n0.9 Ohm max<\/td>\n<\/tr>\n
Breakdown Voltage (VDSS)<\/td>\n14V<\/td>\n<\/tr>\n
Gate-Source Breakdown<\/td>\n6V<\/td>\n<\/tr>\n
Power Dissipation<\/td>\n380 mW<\/td>\n<\/tr>\n
Relay Coil Rating<\/td>\nUp to 6W at 12V<\/td>\n<\/tr>\n
Input Type<\/td>\nLogic level<\/td>\n<\/tr>\n
Internal Protection<\/td>\nZener clamp (no freewheeling diode needed)<\/td>\n<\/tr>\n
ESD Protection<\/td>\nIntegrated<\/td>\n<\/tr>\n
Temperatura de funcionamiento<\/td>\n-40 to +85 C<\/td>\n<\/tr>\n
Paquete<\/td>\nSC-74 \/ SOT-457 (3.0 x 1.5 x 0.94 mm)<\/td>\n<\/tr>\n
Status<\/td>\nLast Shipments \/ Obsolete<\/td>\n<\/tr>\n
RoHS<\/td>\nYes<\/td>\n<\/tr>\n<\/table>\n

Caracter\u00edsticas<\/h2>\n
    \n
  • Integrated MOSFET switch + Zener clamp + ESD protection<\/li>\n
  • No external freewheeling diode required<\/li>\n
  • Optimized for 12V relay coil driving<\/li>\n
  • Up to 6W relay coil at 12V<\/li>\n
  • Logic level input compatible<\/li>\n
  • Internal Zener routes induced current to ground for quiet operation<\/li>\n
  • Low RDS(ON) reduces system current drain<\/li>\n<\/ul>\n

    Aplicaciones<\/h2>\n
      \n
    • Telecom line cards, modems<\/li>\n
    • TV, VCR, stereo receivers<\/li>\n
    • Small appliances, security systems<\/li>\n
    • Photocopiers, printers<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The NUD3112DMT1G from onsemi is an integrated relay and inductive load driver in a 6-pin SC-74 (SOT-457) package. It integrates an N-channel MOSFET switch with ESD protection and Zener clamp, eliminating the need for external freewheeling diodes when driving inductive loads such as 12V relay coils up to 6W. Key Specifications Function Inductive […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[36,13],"tags":[],"chip_brand":[144],"class_list":["post-5451","post","type-post","status-publish","format-standard","hentry","category-gate-driver-ics","category-integrated-circuits-ics","chip_brand-on"],"acf":{"brief_explanation":"12V relay\/inductive load driver, 400mA, Zener clamp, SC-74","date_code":"","package_case":"SC-74 \/ SOT-457 (3.0 x 1.5 x 0.94 mm)","in_stock":2572,"datasheet":"https:\/\/www.onsemi.com\/pub\/Collateral\/NUD3112-D.PDF","price":"$0.15 @ 3ku","product_introduction":"The NUD3112DMT1G from onsemi is an integrated relay and inductive load driver in a 6-pin SC-74 (SOT-457) package. The DMT suffix denotes the SC-74 package, 1G indicates lead-free. The device integrates all necessary components for driving inductive loads: an N-channel MOSFET switch for load control, an internal Zener clamp that eliminates the need for external freewheeling diodes, and ESD protection for robust operation. When the MOSFET turns off, the inductive kick from the relay coil is clamped by the internal Zener diode, routing the induced current to ground for quieter system operation. The device accepts logic level inputs, making it compatible with direct MCU drive. Optimized for 12V relay rails, it can drive relay coils rated up to 6W at 12V with 0.9 ohm maximum RDS(ON). Note: This device is in Last Shipments status; consider NUD3120DMT1G as a newer alternative.","working_principle":"The NUD3112DMT1G operates through three integrated subsystems: (1) MOSFET Switch: An N-channel power MOSFET with 0.9 ohm RDS(ON) connects the load to ground when the gate is driven high by the logic input. The MOSFET is rated for 14V drain-source breakdown and can sink 300-400mA continuously. (2) Zener Clamp: When the MOSFET turns off, the collapsing magnetic field in the inductive load generates a back-EMF voltage spike. The internal Zener diode clamps this voltage and provides a path for the inductive current, which flows through the Zener to ground. This eliminates the need for an external freewheeling diode across the relay coil and routes the induced energy to ground rather than back into the supply rail, resulting in quieter system operation. (3) ESD Protection: Internal ESD protection on the input pin protects the gate oxide from electrostatic discharge events during handling and operation.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Description<\/th><\/tr>
      1<\/td>GND<\/td>Power<\/td>Ground (source of MOSFET)<\/td><\/tr>
      2<\/td>IN<\/td>Input<\/td>Logic level gate drive input<\/td><\/tr>
      3<\/td>VCC<\/td>Power<\/td>Supply voltage (12V typical)<\/td><\/tr>
      4<\/td>DRAIN<\/td>Output<\/td>MOSFET drain (load connection)<\/td><\/tr>
      5<\/td>GND<\/td>Power<\/td>Ground (source of MOSFET)<\/td><\/tr>
      6<\/td>DRAIN<\/td>Output<\/td>MOSFET drain (second load)<\/td><\/tr><\/table>","application_scenarios":"
      • 12V relay driver with integrated Zener clamp eliminating external freewheeling diode in telecom line cards<\/li>
      • Solenoid driver for security system door locks with logic-level MCU control<\/li>
      • Small DC motor driver in office automation equipment with ESD-protected input<\/li>
      • Multiple relay driver using dual outputs for printer paper feed and carriage control<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>Package<\/th>Notes<\/th><\/tr>
        NUD3120DMT1G<\/td>onsemi<\/td>SC-74<\/td>Newer replacement, same function<\/td><\/tr>
        NUD3105DMT1G<\/td>onsemi<\/td>SC-74<\/td>Single driver version<\/td><\/tr>
        TPL7407LA<\/td>TI<\/td>TSSOP-16<\/td>7-channel relay driver<\/td><\/tr>
        ULN2003A<\/td>TI\/onsemi<\/td>DIP-16<\/td>7-channel Darlington driver<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/5451","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/comments?post=5451"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/5451\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/media?parent=5451"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/categories?post=5451"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/tags?post=5451"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/chip_brand?post=5451"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}