The RS-0509D/H2 from Recom Power is a DC to DC Converter with Input Voltage 4.5 to 9 V, Output Voltage 1 9 V, Output Current 1 111 mA, Output Power 2000 mW, Output Voltage 2 -9 V. Tags: Through Hole, Boost/Step Up. More details for RS-0509D/H2 can be seen below.