The CHS120483R3 from Cosel is a DC to DC Converter with Input Voltage 36 to 76 V, Output Voltage 1 3.3 V, Output Current 1 30 A, Output Power 99000 mW, Isolation Voltage 2250 Vdc. Tags: Surface Mount, Buck/Step down. More details for CHS120483R3 can be seen below.