URF1D_QB-50WR3 series is a high-performance product specifically designed for a variety of railway applications. The DC-DC converters feature 50W output power with no requirement for minimum load, wide input voltage from 43-160VDC, and allowing operating temperature as high as 105℃. The products also provide input under-voltage protection, output over-voltage, short-circuit and over-temperature protection. Additional functions include remote On/Off control, remote sense compensation and output voltage trim adjustment. EN50155 approved and they are widely used in railway systems and associated equipment.