The SUCS6243R3 from Cosel is a DC to DC Converter with Input Voltage 18 to 36 V, Output Voltage 1 3.3 V, Output Current 1 1.35 A, Output Power 4460 mW, Isolation Voltage 500 Vdc. Tags: Through Hole, Surface Mount, Buck/Step down. More details for SUCS6243R3 can be seen below.