Suitable common mode chokes: TDR 2-05xx : see stock number ; 745-1203 745-1203 TDR 2-12xx : see stock number ; 745-1171 745-1171 TDR 2-24xx : see stock number ; 745-1219 745-1219 TDR 2-48xx : see stock number ; 745-1171 745-1171. 3. Traco 2W DIP Single/Dual Output Regulated Isolated DC-DC Converter - TDR 2 Series. Compact design in DIP package Wide 2:1 input voltage range Fully regulated outputs No minimum load required I/O-isolation 1500 Vdc Operating temperature range –40 °C to +85 °C without derating Short circuit protection Remote On/Off