The SFCS15483R3 from Cosel is a DC to DC Converter with Input Voltage 36 to 76 V, Output Voltage 1 3.3 V, Output Current 1 4.5A, Output Power 14850 mW, Isolation Voltage 1000 Vdc. Tags: Through Hole, Surface Mount, Buck/Step down. More details for SFCS15483R3 can be seen below.