The 3813-S05 from Modular Devices is a DC to DC Converter with Input Voltage 18 to 50 V, Output Voltage 1 4.8 to 5.2 V, Output Current 1 0.36 to 3.6 A, Output Power 18000 mW, Isolation Voltage 500 Vdc. Tags: Through Hole. More details for 3813-S05 can be seen below.