The RDL03-48S09W from Ideal Power Ltd is a DC to DC Converter with Input Voltage 18 to 75 V, Output Voltage 1 9 V, Output Current 1 333 mA, Isolation Voltage 1500 to 3000 V, Operating Temperature -55 to 100 ºC. Tags: Through Hole, Buck/Step down. More details for RDL03-48S09W can be seen below.