URF1D_LD-40WR3 series of isolated 40W DC-DC converter products have an ultra-wide input voltage of 40-160VDC and featureefficiencyofup to 91%. Meet reinforced isolation, input to output isolation is tested with 3000VDC/1500VAC and the converters safely operateinanambient temperature of -40℃ to +85℃. Input under-voltage protection, output short circuit, over-current, over-voltage, over- temperatureprotection. It is ideally suiting electronic equipment and railway vehicle applications using 72V, 96V and 110V battery voltages.