TDR 3-0513 is a DC-DC converter manufactured by TRACO Power. It is a 5V Single Output Isolated Switch Mode Converter with a 20 Amp continuous output current rating and a wide 4:1 input voltage range. It features built-in short-circuit and overload protection, very low noise and ripple, and a high efficiency of up to 88%. It is widely used in medical, telecommunications, instrumentation, industrial, and audio/video applications.