The SA50-120-3R3-15T-A-H from Microchip Technology is a DC to DC Converter with Input Voltage 120 V, Output Voltage 1 3.3 V, Output Current 1 4 A, Output Power 43000 mW, Output Voltage 2 15 V. Tags: Through Hole, Buck/Step down. More details for SA50-120-3R3-15T-A-H can be seen below.