The ASD05-12D5 from Astrodyne TDI is DC/DC converter (isolated module) with 2 outputs: 5V 500mA and -5V 500mA. This converter has 5W power, 1.5 kV isolation voltage and 83% efficiency. Comes in 6-DIP module package and operate at 9 to 36V input voltage range. Dimensions of this converter are: 2.00" L x 1.00" W x 0.31" H (50.8mm x 25.4mm x 7.8mm). Operating temperature range is from -25°C to 71°C (with derating).