NCE 524-106 HO DA-SR Silent Running Plug & Play DCC Decoder

The NCE 524-106 DA-SR is a board-replacement drop-in DCC decoder for a wide range of popular HO scale locomotive brands. It replaces the locomotive's existing circuit board entirely — no wiring, no soldering on the motor leads — while adding NCE's Silent Running torque-compensated motor control and directional lighting. Check the compatibility list below to confirm fit before ordering; when it fits, it's one of the easiest decoder installations available.

Arizona Hobbies is an authorized NCE dealer in Tucson, AZ, and stocks NCE drop-in decoders for many popular HO models.

• Board-Replacement Drop-In — replaces the existing circuit board; motor leads connect directly with no soldering required
• Silent Running Motor Drive — torque compensation for smooth, quiet low-speed performance
• Directional Lighting — front and rear headlights controlled automatically
• Compact Profile — 2.850 × 0.65 × 0.125 in (72 × 17 × 3.2 mm)
• NMRA DCC Compliant — works with all standard DCC command stations

Compatible locomotive models include:

• Atlas: GP38, GP40, RS1, RS2, RS3, C424, C425, GP7, RSD4, RSD5, RSD12, C30-7, U23B, U33C, U36C
• Athearn Genesis: F7, F3, SD70, SD75, SD80, and others
• Kato: GP35, SD40, C44-9W
• Stewart: AS16, F3A, F3B, F7A, F7B, F9A, F9B, U25B