Capacitor Devices

This 220µF capacitor helps keep power to the decoder during momentary power losses. For use with decoders that use an external capacitor assembly, such as the  TSU-1100 or ECO-100. See the "Manufacturer" page for general delivery and...

This 40mm x 6mm x 11mm DCC accessory maintains power to the decoder for up to 10 seconds during electrical interruptions. See the "Manufacturer" page for general delivery and pricing information.

Not all models are made the same, and some are a TIGHT fit for a decoder installation. The CurrentKeeper is now available in two sizes to fit more models and make your installs easier! Keep more of your trains running even over dirty track and switches!...

TCS Keep-Alive® (KA) devices are used to supply power to decoders during times of power interruption due to dirty track or problematic track work. Newly-redesigned at half the size of a KA4, the KA2 will power HO or N scale locomotives with...

The Keep-Alive™ (KA) devices are used to supply power to decoders during times of power interruption due to dirty track or problematic track work. KA3 will power an HO locomotive with headlights on for approximately 6 to 20 seconds (depending on...

The Keep-Alive™ (KA) devices are used to supply power to decoders during times of power interruption due to dirty track or problematic track work. KA4 will power an HO locomotive with headlights on for approximately 6 to 20 seconds (depending on...

TCS Keep-Alive® (KA) devices are used to supply power to decoders during times of power interruption due to dirty track or problematic track work. The KA4-C will power an HO scale locomotive with headlights on for approximately 6 to 20 seconds...

"The new ESU PowerPack Mini can be wired to all fourth and fifth generation ESU decoders. It reliably supplies energy to your locomotive when traversing dirty track or long turnout ladders. With its energy storage (1 Farad capacity) the unit...

Features: For use with Digitrax decoders equipped with 6-pin function harness 8 ohm, 16mm x 26mm x 9mm box speaker included Keeps locos running during intermittent power interruptions resulting from dirty or bad track. 0.33F capacitance Use on...

Features: For use with Digitrax decoders equipped with 2-pin PX socket or solder pad connections Keeps locos running during intermittent power interruptions resulting from dirty or bad track. 0.33F capacitance Use on 10-18V track power Hold up time...

Features: For use with Digitrax decoders equipped with 6-pin function harness 8 ohm, 16mm x 26mm x 9mm box speaker included Keeps locos running during intermittent power interruptions resulting from dirty or bad track. 0.33F capacitance Use on...

Features: For use with Digitrax decoders equipped with 6-pin function harness Keeps locos running during intermittent power interruptions resulting from dirty or bad track. 0.33F capacitance Use on 10-18V track power Hold up time varies based on...

Features: Keeps locos & sound running during power interruptions caused by dirty or bad track. Hold up time varies based on decoder load & track conditions. Use with Digitrax Series 6 decoders with 10-pin sound harnesses such as SDH166D &...

Features: Keeps locos running during intermittent power interruptions caused by dirty or bad track. Hold up time varies based on actual decoder load & track conditions. Plug n'play installation on Digitrax Series 6 decoders such as DH126 and...

Features: Keeps locos running during intermittent power interruptions caused by dirty or bad track. Keeps sound from dropping out due to short power interuptions Hold up time varies based on actual decoder load & track conditions. Use with...

Features: Keeps locos & sound running during power interruptions caused by dirty or bad track. Keeps light and other functions from dropping out due to power interruptions. Hold up time varies based on decoder load & track conditions. Use...

Easily connect a CurrentKeeper or extra capacitor to any SoundTraxx decoder equipped with a 2-pin "Quick Plug" to improve performance over dirty track and switches. See the "Manufacturer" page for general delivery and pricing...