SKU: 1295
$48.95 Buy Now

The K3D3 is a N-scale drop-in decoder designed specifically to fit the Kato N-Scale NW2 locomotive.

Note: This decoder is very fragile due to its thickness and physical design. Special caution should be taken when installing to ensure the PCB is not stressed or snapped!

  • Back EMF Load Compensation:
  • Provides superior slow speed control and high performance under load.

  • Quiet Drive:
  • Super-quiet motor control for "buzz" free motor performance.

  • DC Mode:
  • Decoder will automatically detect DC power. You can also configure how your lighting effects function on DC.

  • Variable Momentum:
  • Allows you to make custom acceleration and deceleration curves.

  • LED Support:
  • This product does not require external resistors when connecting LED's.

  • Function Remapping:
  • Buttons 0 through 12 may be used to control the lighting functions of this decoder.

  • Programmable Lighting Effects:
  • Choose from 20 separate user-programmable lighting effects!

  • Dimmable Brightness:
  • Configure multiple different brightness levels for your LED's or incandescent bulbs.

  • Decoder Lock:
  • Feature which prevents accidental/unwanted programming while activated.

  • Airwire™ Compatible:
  • Fully compatible with Airwire™ operation.

  • User-Loadable Speed Tables:
  • Configure custom speed curves and set speed limits.

    Interface Type
    Dimensions (L x W x H): 1.261" x 0.432" x 0.068" or 32.02mm x 10.97mm x 1.73mm
    Scale: N Scale
    Continuous/Peak: 1.0/2.0 Amp
    Total Functions: 3
    Function Rating: 80 mA
    LED Outputs
    Onboard LEDs

    Decoder Literature


    Comprehensive Guides

    Installation Tips

    Note of caution: Motor tabs must be removed AND reused for this installation.

    Care must be taken in the removal of the motor tabs.

    1. Carefully remove the motor tabs using tweezers; Save for later. See tcsdcc.com for more detailed information in the removal of the motor tabs.
    2. Next remove the original lighting board.
    3. Install the decoder in place of the original lighting board.
    4. Now reinsert the motor tabs, connecting the motor brushes to the decoder. Please reference tcsdcc.com for more detailed instructions.

    Note: If hooking up the third light output use an LED only and please refer to our website tcsdcc.com for pictures and information as there is more information needed then there is room to document here.

    Keep-Alive® Wiring Diagram
    K3D3 Keep Alive

    One Year Goof Proof Warranty

    All decoders are covered by a one year goof proof warranty. Please return in a small box.
    You MUST register the failed decoder on our website at tcsdcc.com/warranty
    Follow the instructions on the website before returning any decoders to TCS.