The SUS1R51205 from Cosel is a DC to DC Converter with Input Voltage 9 to 18 V, Output Voltage 1 5 V, Output Current 1 0.3 A, Output Power 1500 mW, Isolation Voltage 500 Vdc. Tags: Through Hole, Surface Mount, Buck/Step down. More details for SUS1R51205 can be seen below.