True Z Scale decoder -- under 7mm in width. Fits all Z-Scale Diesel Locomotives. Super small size with powerful 1 Amp motor drive. Includes all standard TCS decoder features including: Auto-Adjusting BEMF / Load Compensation Dimensions : 0.51" X 0.26" X 0.11" or 12.95mm. X 6.65mm. X 2.79mm. SKU : 1296