The RY-0509S/P from Recom Power is a DC to DC Converter with Input Voltage 5 V, Output Voltage 1 9 V, Output Current 1 111 mA, Output Power 1000 mW, Operating Temperature -40 to 70 Degree C. Tags: Through Hole, Boost/Step Up. More details for RY-0509S/P can be seen below.