For suitable heatsink see stock number ; 745-1247 745-1247 For suitable common mode choke see stock number ; 745-1187 745-1187. 3. Traco 20W Single/Dual Output Regulated Isolated DC-DC Converter - THN 20 Series. 20W single/dual output regulated isolated high performance DC-DC converter modules with a high power density, compact design and wide input voltage range. These isolated high performance DC-DC converter modules have a high efficiency enabling operation in temperatures of up to 75°C or 85°C using a heatsink. Typical applications for these high performance DC-DC converter modules include mobile equipment, instrumentation, distributed power architectures in communication and industrial electronics. Ultra compact size: 1.0 x 1.0 x 0.4 Shielded metal case with isolated baseplate Wide 2:1 input voltage ranges Very high efficiency up to 90% Output voltage adjustable Remote On/Off control Operating temp. range –40°C to +75°C and up to 85 °C with heat-sink I/O isolation voltage 1500 Vdc Input filter meets EN 55022 class A without external components No minimum load required