The RS6-1205D is a 5-watt, DC-DC converter from Recom Power. It has a wide input voltage range of 4.75-18V DC, and an adjustable output voltage of 1.2-15V DC. It features a wide temperature range of -40 to +85°C, and is highly efficient, with a maximum efficiency of 91%. it is also very reliable, with a maximum MTBF of 400,000 hours.