Smallest DCC Keep Alive (N Scale) – Voltscooter Engineering

These are the smallest DCC keep alive boards made. They offer the best options for improving operations of N Scale locomotives. These do not provide the level of Keep Alive that can be installed in larger locomotives.

Smallest DCC keep alive foot prints.
- 470uF model is 9.5mm W x 6.6mm L x 3.6mm H
  - Has the same keep alive time as the TCS KA-N1 at DCC track voltages higher than 12V.
  - Can be trimmed with diagonal cutters to 8.3mm W x 5.9mm L.
    - .33″ x .27″ x .15″
- 840uF model is 9.5mm W x 9mm L x 5.5mm H.
  - Runs %25 longer in keep alive than TCS KA-N1.
  - Can be trimmed with diagonal cutters to 9mm W x 9mm L.
    - .36″ x .33″ x .22″
Expandable by easily adding parallel external capacitors. Separate solder pads are provided for this purpose
Easy to program when installed. Will program like a normal decoder when connected to a Lok Programmer, or a Soundtraxx PCB-100 Booster (Page Mode)
16V maximum track voltage
- Over voltage protected
For best results the 470uF should be used with an external 470uF capacitor for a total capacitance of 940uF
- Order the Kyocera TCN4477M016R0070E (0.287″ L x 0.240″ W 0.079″ H (7.30mm x 6.10mm x 2mm)), capacitor from Digi-Key if you want to add more capacitance.
These do not provide the level of Keep Alive that can be installed in larger locomotives. It does provide enough Keep Alive to take you across joints a minor track dirt.